Home / 5,001.60-7,503.20-1,538.40

Finding the Fourth Proportional to 5,001.60, 7,503.20 and 1,538.40

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Solution

The fourth proportional to 5,001.60, 7,503.20 and 1,538.40 is: 2,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,001.60 : 7,503.20 = 1,538.40 : x
  2. Step 2: Convert to fraction form
    5,001.60/7,503.20 = 1,538.40/x
  3. Step 3: Cross multiply
    5,001.60x = 7,503.20 × 1,538.40
  4. Step 4: Simplify right side
    5,001.60x = 11,542,922.88
  5. Step 5: Solve for x
    x = 11,542,922.88/5,001.60
  6. Step 6: Final answer
    x = 2,307.85

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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.