Home / 3,079.71-4,616.45-1,325.86

Finding the Fourth Proportional to 3,079.71, 4,616.45 and 1,325.86

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Solution

The fourth proportional to 3,079.71, 4,616.45 and 1,325.86 is: 1,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.71 : 4,616.45 = 1,325.86 : x
  2. Step 2: Convert to fraction form
    3,079.71/4,616.45 = 1,325.86/x
  3. Step 3: Cross multiply
    3,079.71x = 4,616.45 × 1,325.86
  4. Step 4: Simplify right side
    3,079.71x = 6,120,758.17
  5. Step 5: Solve for x
    x = 6,120,758.17/3,079.71
  6. Step 6: Final answer
    x = 1,987.45

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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.