Home / 5,225.16-7,211.34-3,129.24

Finding the Fourth Proportional to 5,225.16, 7,211.34 and 3,129.24

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Solution

The fourth proportional to 5,225.16, 7,211.34 and 3,129.24 is: 4,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.16 : 7,211.34 = 3,129.24 : x
  2. Step 2: Convert to fraction form
    5,225.16/7,211.34 = 3,129.24/x
  3. Step 3: Cross multiply
    5,225.16x = 7,211.34 × 3,129.24
  4. Step 4: Simplify right side
    5,225.16x = 22,566,013.58
  5. Step 5: Solve for x
    x = 22,566,013.58/5,225.16
  6. Step 6: Final answer
    x = 4,318.72

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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.