Home / 5,557.30-7,669.20-3,167.80

Finding the Fourth Proportional to 5,557.30, 7,669.20 and 3,167.80

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Solution

The fourth proportional to 5,557.30, 7,669.20 and 3,167.80 is: 4,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.30 : 7,669.20 = 3,167.80 : x
  2. Step 2: Convert to fraction form
    5,557.30/7,669.20 = 3,167.80/x
  3. Step 3: Cross multiply
    5,557.30x = 7,669.20 × 3,167.80
  4. Step 4: Simplify right side
    5,557.30x = 24,294,491.76
  5. Step 5: Solve for x
    x = 24,294,491.76/5,557.30
  6. Step 6: Final answer
    x = 4,371.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.