Home / 5,235.04-7,221.15-3,109.13

Finding the Fourth Proportional to 5,235.04, 7,221.15 and 3,109.13

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Solution

The fourth proportional to 5,235.04, 7,221.15 and 3,109.13 is: 4,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.04 : 7,221.15 = 3,109.13 : x
  2. Step 2: Convert to fraction form
    5,235.04/7,221.15 = 3,109.13/x
  3. Step 3: Cross multiply
    5,235.04x = 7,221.15 × 3,109.13
  4. Step 4: Simplify right side
    5,235.04x = 22,451,494.10
  5. Step 5: Solve for x
    x = 22,451,494.10/5,235.04
  6. Step 6: Final answer
    x = 4,288.70

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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.