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Finding the Fourth Proportional to 7,182.00, 9,908.11 and 4,385.88

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Solution

The fourth proportional to 7,182.00, 9,908.11 and 4,385.88 is: 6,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.00 : 9,908.11 = 4,385.88 : x
  2. Step 2: Convert to fraction form
    7,182.00/9,908.11 = 4,385.88/x
  3. Step 3: Cross multiply
    7,182.00x = 9,908.11 × 4,385.88
  4. Step 4: Simplify right side
    7,182.00x = 43,455,710.02
  5. Step 5: Solve for x
    x = 43,455,710.02/7,182.00
  6. Step 6: Final answer
    x = 6,050.65

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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.