Home / 3,079.27-4,618.52-858.27

Finding the Fourth Proportional to 3,079.27, 4,618.52 and 858.27

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Solution

The fourth proportional to 3,079.27, 4,618.52 and 858.27 is: 1,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.27 : 4,618.52 = 858.27 : x
  2. Step 2: Convert to fraction form
    3,079.27/4,618.52 = 858.27/x
  3. Step 3: Cross multiply
    3,079.27x = 4,618.52 × 858.27
  4. Step 4: Simplify right side
    3,079.27x = 3,963,937.16
  5. Step 5: Solve for x
    x = 3,963,937.16/3,079.27
  6. Step 6: Final answer
    x = 1,287.30

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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.