Home / 4,287.79-6,432.59-1,326.43

Finding the Fourth Proportional to 4,287.79, 6,432.59 and 1,326.43

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Solution

The fourth proportional to 4,287.79, 6,432.59 and 1,326.43 is: 1,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.79 : 6,432.59 = 1,326.43 : x
  2. Step 2: Convert to fraction form
    4,287.79/6,432.59 = 1,326.43/x
  3. Step 3: Cross multiply
    4,287.79x = 6,432.59 × 1,326.43
  4. Step 4: Simplify right side
    4,287.79x = 8,532,367.59
  5. Step 5: Solve for x
    x = 8,532,367.59/4,287.79
  6. Step 6: Final answer
    x = 1,989.92

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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.