Home / 5,221.47-7,826.72-2,445.88

Finding the Fourth Proportional to 5,221.47, 7,826.72 and 2,445.88

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Solution

The fourth proportional to 5,221.47, 7,826.72 and 2,445.88 is: 3,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.47 : 7,826.72 = 2,445.88 : x
  2. Step 2: Convert to fraction form
    5,221.47/7,826.72 = 2,445.88/x
  3. Step 3: Cross multiply
    5,221.47x = 7,826.72 × 2,445.88
  4. Step 4: Simplify right side
    5,221.47x = 19,143,204.46
  5. Step 5: Solve for x
    x = 19,143,204.46/5,221.47
  6. Step 6: Final answer
    x = 3,666.25

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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.