Home / 1,551.16-2,141.22-1,178.20

Finding the Fourth Proportional to 1,551.16, 2,141.22 and 1,178.20

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Solution

The fourth proportional to 1,551.16, 2,141.22 and 1,178.20 is: 1,626.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.16 : 2,141.22 = 1,178.20 : x
  2. Step 2: Convert to fraction form
    1,551.16/2,141.22 = 1,178.20/x
  3. Step 3: Cross multiply
    1,551.16x = 2,141.22 × 1,178.20
  4. Step 4: Simplify right side
    1,551.16x = 2,522,785.40
  5. Step 5: Solve for x
    x = 2,522,785.40/1,551.16
  6. Step 6: Final answer
    x = 1,626.39

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,552.16, 2,142.60 and 1,179.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.