Home / 4,574.28-6,861.44-1,287.30

Finding the Fourth Proportional to 4,574.28, 6,861.44 and 1,287.30

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Solution

The fourth proportional to 4,574.28, 6,861.44 and 1,287.30 is: 1,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,574.28 : 6,861.44 = 1,287.30 : x
  2. Step 2: Convert to fraction form
    4,574.28/6,861.44 = 1,287.30/x
  3. Step 3: Cross multiply
    4,574.28x = 6,861.44 × 1,287.30
  4. Step 4: Simplify right side
    4,574.28x = 8,832,731.71
  5. Step 5: Solve for x
    x = 8,832,731.71/4,574.28
  6. Step 6: Final answer
    x = 1,930.96

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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.