Home / 1,118.08-1,675.68-932.32

Finding the Fourth Proportional to 1,118.08, 1,675.68 and 932.32

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Solution

The fourth proportional to 1,118.08, 1,675.68 and 932.32 is: 1,397.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.08 : 1,675.68 = 932.32 : x
  2. Step 2: Convert to fraction form
    1,118.08/1,675.68 = 932.32/x
  3. Step 3: Cross multiply
    1,118.08x = 1,675.68 × 932.32
  4. Step 4: Simplify right side
    1,118.08x = 1,562,269.98
  5. Step 5: Solve for x
    x = 1,562,269.98/1,118.08
  6. Step 6: Final answer
    x = 1,397.28

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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.