Home / 6,639.57-9,959.38-2,690.89

Finding the Fourth Proportional to 6,639.57, 9,959.38 and 2,690.89

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Solution

The fourth proportional to 6,639.57, 9,959.38 and 2,690.89 is: 4,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.57 : 9,959.38 = 2,690.89 : x
  2. Step 2: Convert to fraction form
    6,639.57/9,959.38 = 2,690.89/x
  3. Step 3: Cross multiply
    6,639.57x = 9,959.38 × 2,690.89
  4. Step 4: Simplify right side
    6,639.57x = 26,799,564.42
  5. Step 5: Solve for x
    x = 26,799,564.42/6,639.57
  6. Step 6: Final answer
    x = 4,036.34

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1.5x scale

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.