Home / 4,319.55-6,479.60-1,687.59

Finding the Fourth Proportional to 4,319.55, 6,479.60 and 1,687.59

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Solution

The fourth proportional to 4,319.55, 6,479.60 and 1,687.59 is: 2,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.55 : 6,479.60 = 1,687.59 : x
  2. Step 2: Convert to fraction form
    4,319.55/6,479.60 = 1,687.59/x
  3. Step 3: Cross multiply
    4,319.55x = 6,479.60 × 1,687.59
  4. Step 4: Simplify right side
    4,319.55x = 10,934,899.73
  5. Step 5: Solve for x
    x = 10,934,899.73/4,319.55
  6. Step 6: Final answer
    x = 2,531.49

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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.