Home / 3,574.15-5,385.64-2,939.11

Finding the Fourth Proportional to 3,574.15, 5,385.64 and 2,939.11

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Solution

The fourth proportional to 3,574.15, 5,385.64 and 2,939.11 is: 4,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.15 : 5,385.64 = 2,939.11 : x
  2. Step 2: Convert to fraction form
    3,574.15/5,385.64 = 2,939.11/x
  3. Step 3: Cross multiply
    3,574.15x = 5,385.64 × 2,939.11
  4. Step 4: Simplify right side
    3,574.15x = 15,828,988.38
  5. Step 5: Solve for x
    x = 15,828,988.38/3,574.15
  6. Step 6: Final answer
    x = 4,428.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.