Home / 3,168.60-4,752.45-977.55

Finding the Fourth Proportional to 3,168.60, 4,752.45 and 977.55

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Solution

The fourth proportional to 3,168.60, 4,752.45 and 977.55 is: 1,466.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.60 : 4,752.45 = 977.55 : x
  2. Step 2: Convert to fraction form
    3,168.60/4,752.45 = 977.55/x
  3. Step 3: Cross multiply
    3,168.60x = 4,752.45 × 977.55
  4. Step 4: Simplify right side
    3,168.60x = 4,645,757.50
  5. Step 5: Solve for x
    x = 4,645,757.50/3,168.60
  6. Step 6: Final answer
    x = 1,466.19

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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.