Home / 3,689.12-5,088.32-2,508.08

Finding the Fourth Proportional to 3,689.12, 5,088.32 and 2,508.08

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Solution

The fourth proportional to 3,689.12, 5,088.32 and 2,508.08 is: 3,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.12 : 5,088.32 = 2,508.08 : x
  2. Step 2: Convert to fraction form
    3,689.12/5,088.32 = 2,508.08/x
  3. Step 3: Cross multiply
    3,689.12x = 5,088.32 × 2,508.08
  4. Step 4: Simplify right side
    3,689.12x = 12,761,913.63
  5. Step 5: Solve for x
    x = 12,761,913.63/3,689.12
  6. Step 6: Final answer
    x = 3,459.34

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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.