Home / 1,031.10-1,543.05-944.70

Finding the Fourth Proportional to 1,031.10, 1,543.05 and 944.70

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Solution

The fourth proportional to 1,031.10, 1,543.05 and 944.70 is: 1,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.10 : 1,543.05 = 944.70 : x
  2. Step 2: Convert to fraction form
    1,031.10/1,543.05 = 944.70/x
  3. Step 3: Cross multiply
    1,031.10x = 1,543.05 × 944.70
  4. Step 4: Simplify right side
    1,031.10x = 1,457,719.34
  5. Step 5: Solve for x
    x = 1,457,719.34/1,031.10
  6. Step 6: Final answer
    x = 1,413.75

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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.