Home / 5,006.90-7,500.10-2,811.02

Finding the Fourth Proportional to 5,006.90, 7,500.10 and 2,811.02

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Solution

The fourth proportional to 5,006.90, 7,500.10 and 2,811.02 is: 4,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,006.90 : 7,500.10 = 2,811.02 : x
  2. Step 2: Convert to fraction form
    5,006.90/7,500.10 = 2,811.02/x
  3. Step 3: Cross multiply
    5,006.90x = 7,500.10 × 2,811.02
  4. Step 4: Simplify right side
    5,006.90x = 21,082,931.10
  5. Step 5: Solve for x
    x = 21,082,931.10/5,006.90
  6. Step 6: Final answer
    x = 4,210.78

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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.