Home / 4,929.80-7,397.00-2,156.10

Finding the Fourth Proportional to 4,929.80, 7,397.00 and 2,156.10

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Solution

The fourth proportional to 4,929.80, 7,397.00 and 2,156.10 is: 3,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.80 : 7,397.00 = 2,156.10 : x
  2. Step 2: Convert to fraction form
    4,929.80/7,397.00 = 2,156.10/x
  3. Step 3: Cross multiply
    4,929.80x = 7,397.00 × 2,156.10
  4. Step 4: Simplify right side
    4,929.80x = 15,948,676.81
  5. Step 5: Solve for x
    x = 15,948,676.81/4,929.80
  6. Step 6: Final answer
    x = 3,235.16

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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.