Home / 4,658.72-6,987.28-1,326.56

Finding the Fourth Proportional to 4,658.72, 6,987.28 and 1,326.56

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Solution

The fourth proportional to 4,658.72, 6,987.28 and 1,326.56 is: 1,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658.72 : 6,987.28 = 1,326.56 : x
  2. Step 2: Convert to fraction form
    4,658.72/6,987.28 = 1,326.56/x
  3. Step 3: Cross multiply
    4,658.72x = 6,987.28 × 1,326.56
  4. Step 4: Simplify right side
    4,658.72x = 9,269,046.16
  5. Step 5: Solve for x
    x = 9,269,046.16/4,658.72
  6. Step 6: Final answer
    x = 1,989.61

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1.5x scale

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.