Home / 4,977.10-7,465.65-3,421.90

Finding the Fourth Proportional to 4,977.10, 7,465.65 and 3,421.90

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Solution

The fourth proportional to 4,977.10, 7,465.65 and 3,421.90 is: 5,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.10 : 7,465.65 = 3,421.90 : x
  2. Step 2: Convert to fraction form
    4,977.10/7,465.65 = 3,421.90/x
  3. Step 3: Cross multiply
    4,977.10x = 7,465.65 × 3,421.90
  4. Step 4: Simplify right side
    4,977.10x = 25,546,707.74
  5. Step 5: Solve for x
    x = 25,546,707.74/4,977.10
  6. Step 6: Final answer
    x = 5,132.85

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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.