Home / 3,439.05-5,157.23-1,246.65

Finding the Fourth Proportional to 3,439.05, 5,157.23 and 1,246.65

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Solution

The fourth proportional to 3,439.05, 5,157.23 and 1,246.65 is: 1,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.05 : 5,157.23 = 1,246.65 : x
  2. Step 2: Convert to fraction form
    3,439.05/5,157.23 = 1,246.65/x
  3. Step 3: Cross multiply
    3,439.05x = 5,157.23 × 1,246.65
  4. Step 4: Simplify right side
    3,439.05x = 6,429,254.55
  5. Step 5: Solve for x
    x = 6,429,254.55/3,439.05
  6. Step 6: Final answer
    x = 1,869.49

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Double scale
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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.