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Finding the Fourth Proportional to 7,281.60, 10,051.20 and 4,488

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Solution

The fourth proportional to 7,281.60, 10,051.20 and 4,488 is: 6,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.60 : 10,051.20 = 4,488 : x
  2. Step 2: Convert to fraction form
    7,281.60/10,051.20 = 4,488/x
  3. Step 3: Cross multiply
    7,281.60x = 10,051.20 × 4,488
  4. Step 4: Simplify right side
    7,281.60x = 45,109,785.60
  5. Step 5: Solve for x
    x = 45,109,785.60/7,281.60
  6. Step 6: Final answer
    x = 6,195.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.