Home / 1,531.76-2,111.10-1,250.18

Finding the Fourth Proportional to 1,531.76, 2,111.10 and 1,250.18

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Solution

The fourth proportional to 1,531.76, 2,111.10 and 1,250.18 is: 1,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.76 : 2,111.10 = 1,250.18 : x
  2. Step 2: Convert to fraction form
    1,531.76/2,111.10 = 1,250.18/x
  3. Step 3: Cross multiply
    1,531.76x = 2,111.10 × 1,250.18
  4. Step 4: Simplify right side
    1,531.76x = 2,639,263.40
  5. Step 5: Solve for x
    x = 2,639,263.40/1,531.76
  6. Step 6: Final answer
    x = 1,723.03

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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.