Home / 6,639.25-9,960.58-1,959.07

Finding the Fourth Proportional to 6,639.25, 9,960.58 and 1,959.07

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Solution

The fourth proportional to 6,639.25, 9,960.58 and 1,959.07 is: 2,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.25 : 9,960.58 = 1,959.07 : x
  2. Step 2: Convert to fraction form
    6,639.25/9,960.58 = 1,959.07/x
  3. Step 3: Cross multiply
    6,639.25x = 9,960.58 × 1,959.07
  4. Step 4: Simplify right side
    6,639.25x = 19,513,423.66
  5. Step 5: Solve for x
    x = 19,513,423.66/6,639.25
  6. Step 6: Final answer
    x = 2,939.10

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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.