Home / 4,700.40-7,046.55-2,391.90

Finding the Fourth Proportional to 4,700.40, 7,046.55 and 2,391.90

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Solution

The fourth proportional to 4,700.40, 7,046.55 and 2,391.90 is: 3,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.40 : 7,046.55 = 2,391.90 : x
  2. Step 2: Convert to fraction form
    4,700.40/7,046.55 = 2,391.90/x
  3. Step 3: Cross multiply
    4,700.40x = 7,046.55 × 2,391.90
  4. Step 4: Simplify right side
    4,700.40x = 16,854,642.95
  5. Step 5: Solve for x
    x = 16,854,642.95/4,700.40
  6. Step 6: Final answer
    x = 3,585.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.