Home / 2,511.28-3,465.57-1,392.19

Finding the Fourth Proportional to 2,511.28, 3,465.57 and 1,392.19

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Solution

The fourth proportional to 2,511.28, 3,465.57 and 1,392.19 is: 1,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.28 : 3,465.57 = 1,392.19 : x
  2. Step 2: Convert to fraction form
    2,511.28/3,465.57 = 1,392.19/x
  3. Step 3: Cross multiply
    2,511.28x = 3,465.57 × 1,392.19
  4. Step 4: Simplify right side
    2,511.28x = 4,824,731.90
  5. Step 5: Solve for x
    x = 4,824,731.90/2,511.28
  6. Step 6: Final answer
    x = 1,921.22

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Half scale
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Double scale
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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.