Home / 1,254.90-1,733.12-1,117.47

Finding the Fourth Proportional to 1,254.90, 1,733.12 and 1,117.47

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Solution

The fourth proportional to 1,254.90, 1,733.12 and 1,117.47 is: 1,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.90 : 1,733.12 = 1,117.47 : x
  2. Step 2: Convert to fraction form
    1,254.90/1,733.12 = 1,117.47/x
  3. Step 3: Cross multiply
    1,254.90x = 1,733.12 × 1,117.47
  4. Step 4: Simplify right side
    1,254.90x = 1,936,704.02
  5. Step 5: Solve for x
    x = 1,936,704.02/1,254.90
  6. Step 6: Final answer
    x = 1,543.31

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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.