Home / 1,126.23-1,688.60-467.92

Finding the Fourth Proportional to 1,126.23, 1,688.60 and 467.92

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Solution

The fourth proportional to 1,126.23, 1,688.60 and 467.92 is: 701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.23 : 1,688.60 = 467.92 : x
  2. Step 2: Convert to fraction form
    1,126.23/1,688.60 = 467.92/x
  3. Step 3: Cross multiply
    1,126.23x = 1,688.60 × 467.92
  4. Step 4: Simplify right side
    1,126.23x = 790,129.71
  5. Step 5: Solve for x
    x = 790,129.71/1,126.23
  6. Step 6: Final answer
    x = 701.57

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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.