Home / 3,431.20-5,146.08-1,582.36

Finding the Fourth Proportional to 3,431.20, 5,146.08 and 1,582.36

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Solution

The fourth proportional to 3,431.20, 5,146.08 and 1,582.36 is: 2,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.20 : 5,146.08 = 1,582.36 : x
  2. Step 2: Convert to fraction form
    3,431.20/5,146.08 = 1,582.36/x
  3. Step 3: Cross multiply
    3,431.20x = 5,146.08 × 1,582.36
  4. Step 4: Simplify right side
    3,431.20x = 8,142,951.15
  5. Step 5: Solve for x
    x = 8,142,951.15/3,431.20
  6. Step 6: Final answer
    x = 2,373.21

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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.