Home / 3,247.40-4,881.90-2,772.20

Finding the Fourth Proportional to 3,247.40, 4,881.90 and 2,772.20

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Solution

The fourth proportional to 3,247.40, 4,881.90 and 2,772.20 is: 4,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.40 : 4,881.90 = 2,772.20 : x
  2. Step 2: Convert to fraction form
    3,247.40/4,881.90 = 2,772.20/x
  3. Step 3: Cross multiply
    3,247.40x = 4,881.90 × 2,772.20
  4. Step 4: Simplify right side
    3,247.40x = 13,533,603.18
  5. Step 5: Solve for x
    x = 13,533,603.18/3,247.40
  6. Step 6: Final answer
    x = 4,167.52

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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.