Home / 5,146.12-7,712.46-2,070.28

Finding the Fourth Proportional to 5,146.12, 7,712.46 and 2,070.28

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Solution

The fourth proportional to 5,146.12, 7,712.46 and 2,070.28 is: 3,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.12 : 7,712.46 = 2,070.28 : x
  2. Step 2: Convert to fraction form
    5,146.12/7,712.46 = 2,070.28/x
  3. Step 3: Cross multiply
    5,146.12x = 7,712.46 × 2,070.28
  4. Step 4: Simplify right side
    5,146.12x = 15,966,951.69
  5. Step 5: Solve for x
    x = 15,966,951.69/5,146.12
  6. Step 6: Final answer
    x = 3,102.72

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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.