Home / 5,087.76-7,615.44-4,387.92

Finding the Fourth Proportional to 5,087.76, 7,615.44 and 4,387.92

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Solution

The fourth proportional to 5,087.76, 7,615.44 and 4,387.92 is: 6,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.76 : 7,615.44 = 4,387.92 : x
  2. Step 2: Convert to fraction form
    5,087.76/7,615.44 = 4,387.92/x
  3. Step 3: Cross multiply
    5,087.76x = 7,615.44 × 4,387.92
  4. Step 4: Simplify right side
    5,087.76x = 33,415,941.48
  5. Step 5: Solve for x
    x = 33,415,941.48/5,087.76
  6. Step 6: Final answer
    x = 6,567.91

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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.