Home / 4,772.28-7,158.36-1,309.50

Finding the Fourth Proportional to 4,772.28, 7,158.36 and 1,309.50

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Solution

The fourth proportional to 4,772.28, 7,158.36 and 1,309.50 is: 1,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772.28 : 7,158.36 = 1,309.50 : x
  2. Step 2: Convert to fraction form
    4,772.28/7,158.36 = 1,309.50/x
  3. Step 3: Cross multiply
    4,772.28x = 7,158.36 × 1,309.50
  4. Step 4: Simplify right side
    4,772.28x = 9,373,872.42
  5. Step 5: Solve for x
    x = 9,373,872.42/4,772.28
  6. Step 6: Final answer
    x = 1,964.23

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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.