Home / 6,464.40-9,688.76-2,949.59

Finding the Fourth Proportional to 6,464.40, 9,688.76 and 2,949.59

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Solution

The fourth proportional to 6,464.40, 9,688.76 and 2,949.59 is: 4,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.40 : 9,688.76 = 2,949.59 : x
  2. Step 2: Convert to fraction form
    6,464.40/9,688.76 = 2,949.59/x
  3. Step 3: Cross multiply
    6,464.40x = 9,688.76 × 2,949.59
  4. Step 4: Simplify right side
    6,464.40x = 28,577,869.61
  5. Step 5: Solve for x
    x = 28,577,869.61/6,464.40
  6. Step 6: Final answer
    x = 4,420.81

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1.5x scale

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.