Home / 6,639.77-9,162.55-3,655.87

Finding the Fourth Proportional to 6,639.77, 9,162.55 and 3,655.87

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Solution

The fourth proportional to 6,639.77, 9,162.55 and 3,655.87 is: 5,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.77 : 9,162.55 = 3,655.87 : x
  2. Step 2: Convert to fraction form
    6,639.77/9,162.55 = 3,655.87/x
  3. Step 3: Cross multiply
    6,639.77x = 9,162.55 × 3,655.87
  4. Step 4: Simplify right side
    6,639.77x = 33,497,091.67
  5. Step 5: Solve for x
    x = 33,497,091.67/6,639.77
  6. Step 6: Final answer
    x = 5,044.92

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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.