Home / 5,320.98-7,339.35-4,129.05

Finding the Fourth Proportional to 5,320.98, 7,339.35 and 4,129.05

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Solution

The fourth proportional to 5,320.98, 7,339.35 and 4,129.05 is: 5,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.98 : 7,339.35 = 4,129.05 : x
  2. Step 2: Convert to fraction form
    5,320.98/7,339.35 = 4,129.05/x
  3. Step 3: Cross multiply
    5,320.98x = 7,339.35 × 4,129.05
  4. Step 4: Simplify right side
    5,320.98x = 30,304,543.12
  5. Step 5: Solve for x
    x = 30,304,543.12/5,320.98
  6. Step 6: Final answer
    x = 5,695.29

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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.