Home / 1,240.92-1,862.28-1,000.35

Finding the Fourth Proportional to 1,240.92, 1,862.28 and 1,000.35

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Solution

The fourth proportional to 1,240.92, 1,862.28 and 1,000.35 is: 1,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.92 : 1,862.28 = 1,000.35 : x
  2. Step 2: Convert to fraction form
    1,240.92/1,862.28 = 1,000.35/x
  3. Step 3: Cross multiply
    1,240.92x = 1,862.28 × 1,000.35
  4. Step 4: Simplify right side
    1,240.92x = 1,862,931.80
  5. Step 5: Solve for x
    x = 1,862,931.80/1,240.92
  6. Step 6: Final answer
    x = 1,501.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.