Home / 6,639.24-9,957.32-1,959.57

Finding the Fourth Proportional to 6,639.24, 9,957.32 and 1,959.57

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Solution

The fourth proportional to 6,639.24, 9,957.32 and 1,959.57 is: 2,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.24 : 9,957.32 = 1,959.57 : x
  2. Step 2: Convert to fraction form
    6,639.24/9,957.32 = 1,959.57/x
  3. Step 3: Cross multiply
    6,639.24x = 9,957.32 × 1,959.57
  4. Step 4: Simplify right side
    6,639.24x = 19,512,065.55
  5. Step 5: Solve for x
    x = 19,512,065.55/6,639.24
  6. Step 6: Final answer
    x = 2,938.90

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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.