Home / 5,557.61-8,326.80-2,921.20

Finding the Fourth Proportional to 5,557.61, 8,326.80 and 2,921.20

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Solution

The fourth proportional to 5,557.61, 8,326.80 and 2,921.20 is: 4,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.61 : 8,326.80 = 2,921.20 : x
  2. Step 2: Convert to fraction form
    5,557.61/8,326.80 = 2,921.20/x
  3. Step 3: Cross multiply
    5,557.61x = 8,326.80 × 2,921.20
  4. Step 4: Simplify right side
    5,557.61x = 24,324,227.34
  5. Step 5: Solve for x
    x = 24,324,227.34/5,557.61
  6. Step 6: Final answer
    x = 4,376.74

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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.