Home / 1,555.17-2,144.46-1,532.19

Finding the Fourth Proportional to 1,555.17, 2,144.46 and 1,532.19

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Solution

The fourth proportional to 1,555.17, 2,144.46 and 1,532.19 is: 2,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.17 : 2,144.46 = 1,532.19 : x
  2. Step 2: Convert to fraction form
    1,555.17/2,144.46 = 1,532.19/x
  3. Step 3: Cross multiply
    1,555.17x = 2,144.46 × 1,532.19
  4. Step 4: Simplify right side
    1,555.17x = 3,285,720.17
  5. Step 5: Solve for x
    x = 3,285,720.17/1,555.17
  6. Step 6: Final answer
    x = 2,112.77

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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.