Home / 5,488.08-7,572.60-3,129.36

Finding the Fourth Proportional to 5,488.08, 7,572.60 and 3,129.36

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Solution

The fourth proportional to 5,488.08, 7,572.60 and 3,129.36 is: 4,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.08 : 7,572.60 = 3,129.36 : x
  2. Step 2: Convert to fraction form
    5,488.08/7,572.60 = 3,129.36/x
  3. Step 3: Cross multiply
    5,488.08x = 7,572.60 × 3,129.36
  4. Step 4: Simplify right side
    5,488.08x = 23,697,391.54
  5. Step 5: Solve for x
    x = 23,697,391.54/5,488.08
  6. Step 6: Final answer
    x = 4,317.97

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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.