Home / 7,042.20-9,715.32-4,392.96

Finding the Fourth Proportional to 7,042.20, 9,715.32 and 4,392.96

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Solution

The fourth proportional to 7,042.20, 9,715.32 and 4,392.96 is: 6,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.20 : 9,715.32 = 4,392.96 : x
  2. Step 2: Convert to fraction form
    7,042.20/9,715.32 = 4,392.96/x
  3. Step 3: Cross multiply
    7,042.20x = 9,715.32 × 4,392.96
  4. Step 4: Simplify right side
    7,042.20x = 42,679,012.15
  5. Step 5: Solve for x
    x = 42,679,012.15/7,042.20
  6. Step 6: Final answer
    x = 6,060.47

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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.