Home / 2,470.16-3,689.62-2,081.36

Finding the Fourth Proportional to 2,470.16, 3,689.62 and 2,081.36

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Solution

The fourth proportional to 2,470.16, 3,689.62 and 2,081.36 is: 3,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.16 : 3,689.62 = 2,081.36 : x
  2. Step 2: Convert to fraction form
    2,470.16/3,689.62 = 2,081.36/x
  3. Step 3: Cross multiply
    2,470.16x = 3,689.62 × 2,081.36
  4. Step 4: Simplify right side
    2,470.16x = 7,679,427.48
  5. Step 5: Solve for x
    x = 7,679,427.48/2,470.16
  6. Step 6: Final answer
    x = 3,108.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.