Home / 4,212.59-6,318.88-1,439.29

Finding the Fourth Proportional to 4,212.59, 6,318.88 and 1,439.29

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Solution

The fourth proportional to 4,212.59, 6,318.88 and 1,439.29 is: 2,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.59 : 6,318.88 = 1,439.29 : x
  2. Step 2: Convert to fraction form
    4,212.59/6,318.88 = 1,439.29/x
  3. Step 3: Cross multiply
    4,212.59x = 6,318.88 × 1,439.29
  4. Step 4: Simplify right side
    4,212.59x = 9,094,677.65
  5. Step 5: Solve for x
    x = 9,094,677.65/4,212.59
  6. Step 6: Final answer
    x = 2,158.93

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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.