Home / 5,248.40-7,862.20-3,400.80

Finding the Fourth Proportional to 5,248.40, 7,862.20 and 3,400.80

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Solution

The fourth proportional to 5,248.40, 7,862.20 and 3,400.80 is: 5,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.40 : 7,862.20 = 3,400.80 : x
  2. Step 2: Convert to fraction form
    5,248.40/7,862.20 = 3,400.80/x
  3. Step 3: Cross multiply
    5,248.40x = 7,862.20 × 3,400.80
  4. Step 4: Simplify right side
    5,248.40x = 26,737,769.76
  5. Step 5: Solve for x
    x = 26,737,769.76/5,248.40
  6. Step 6: Final answer
    x = 5,094.46

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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.