Home / 1,612.38-2,225.10-1,053.18

Finding the Fourth Proportional to 1,612.38, 2,225.10 and 1,053.18

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Solution

The fourth proportional to 1,612.38, 2,225.10 and 1,053.18 is: 1,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.38 : 2,225.10 = 1,053.18 : x
  2. Step 2: Convert to fraction form
    1,612.38/2,225.10 = 1,053.18/x
  3. Step 3: Cross multiply
    1,612.38x = 2,225.10 × 1,053.18
  4. Step 4: Simplify right side
    1,612.38x = 2,343,430.82
  5. Step 5: Solve for x
    x = 2,343,430.82/1,612.38
  6. Step 6: Final answer
    x = 1,453.40

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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.