Home / 4,772.70-7,158.18-1,309.92

Finding the Fourth Proportional to 4,772.70, 7,158.18 and 1,309.92

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Solution

The fourth proportional to 4,772.70, 7,158.18 and 1,309.92 is: 1,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772.70 : 7,158.18 = 1,309.92 : x
  2. Step 2: Convert to fraction form
    4,772.70/7,158.18 = 1,309.92/x
  3. Step 3: Cross multiply
    4,772.70x = 7,158.18 × 1,309.92
  4. Step 4: Simplify right side
    4,772.70x = 9,376,643.15
  5. Step 5: Solve for x
    x = 9,376,643.15/4,772.70
  6. Step 6: Final answer
    x = 1,964.64

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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.