Home / 4,871.58-7,301.18-3,115.90

Finding the Fourth Proportional to 4,871.58, 7,301.18 and 3,115.90

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Solution

The fourth proportional to 4,871.58, 7,301.18 and 3,115.90 is: 4,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.58 : 7,301.18 = 3,115.90 : x
  2. Step 2: Convert to fraction form
    4,871.58/7,301.18 = 3,115.90/x
  3. Step 3: Cross multiply
    4,871.58x = 7,301.18 × 3,115.90
  4. Step 4: Simplify right side
    4,871.58x = 22,749,746.76
  5. Step 5: Solve for x
    x = 22,749,746.76/4,871.58
  6. Step 6: Final answer
    x = 4,669.89

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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.