Home / 3,247.20-4,870.56-1,603.20

Finding the Fourth Proportional to 3,247.20, 4,870.56 and 1,603.20

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Solution

The fourth proportional to 3,247.20, 4,870.56 and 1,603.20 is: 2,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.20 : 4,870.56 = 1,603.20 : x
  2. Step 2: Convert to fraction form
    3,247.20/4,870.56 = 1,603.20/x
  3. Step 3: Cross multiply
    3,247.20x = 4,870.56 × 1,603.20
  4. Step 4: Simplify right side
    3,247.20x = 7,808,481.79
  5. Step 5: Solve for x
    x = 7,808,481.79/3,247.20
  6. Step 6: Final answer
    x = 2,404.68

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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.