Home / 2,429.20-3,643.80-2,064.70

Finding the Fourth Proportional to 2,429.20, 3,643.80 and 2,064.70

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Solution

The fourth proportional to 2,429.20, 3,643.80 and 2,064.70 is: 3,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.20 : 3,643.80 = 2,064.70 : x
  2. Step 2: Convert to fraction form
    2,429.20/3,643.80 = 2,064.70/x
  3. Step 3: Cross multiply
    2,429.20x = 3,643.80 × 2,064.70
  4. Step 4: Simplify right side
    2,429.20x = 7,523,353.86
  5. Step 5: Solve for x
    x = 7,523,353.86/2,429.20
  6. Step 6: Final answer
    x = 3,097.05

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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.