Home / 3,647.52-5,472.40-1,307.48

Finding the Fourth Proportional to 3,647.52, 5,472.40 and 1,307.48

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Solution

The fourth proportional to 3,647.52, 5,472.40 and 1,307.48 is: 1,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.52 : 5,472.40 = 1,307.48 : x
  2. Step 2: Convert to fraction form
    3,647.52/5,472.40 = 1,307.48/x
  3. Step 3: Cross multiply
    3,647.52x = 5,472.40 × 1,307.48
  4. Step 4: Simplify right side
    3,647.52x = 7,155,053.55
  5. Step 5: Solve for x
    x = 7,155,053.55/3,647.52
  6. Step 6: Final answer
    x = 1,961.62

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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.