Home / 5,371.14-7,411.20-2,980.81

Finding the Fourth Proportional to 5,371.14, 7,411.20 and 2,980.81

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Solution

The fourth proportional to 5,371.14, 7,411.20 and 2,980.81 is: 4,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.14 : 7,411.20 = 2,980.81 : x
  2. Step 2: Convert to fraction form
    5,371.14/7,411.20 = 2,980.81/x
  3. Step 3: Cross multiply
    5,371.14x = 7,411.20 × 2,980.81
  4. Step 4: Simplify right side
    5,371.14x = 22,091,387.58
  5. Step 5: Solve for x
    x = 22,091,387.58/5,371.14
  6. Step 6: Final answer
    x = 4,112.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.