Home / 4,872.30-7,291.65-2,925.90

Finding the Fourth Proportional to 4,872.30, 7,291.65 and 2,925.90

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Solution

The fourth proportional to 4,872.30, 7,291.65 and 2,925.90 is: 4,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.30 : 7,291.65 = 2,925.90 : x
  2. Step 2: Convert to fraction form
    4,872.30/7,291.65 = 2,925.90/x
  3. Step 3: Cross multiply
    4,872.30x = 7,291.65 × 2,925.90
  4. Step 4: Simplify right side
    4,872.30x = 21,334,638.74
  5. Step 5: Solve for x
    x = 21,334,638.74/4,872.30
  6. Step 6: Final answer
    x = 4,378.76

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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.