Home / 6,639.68-9,168.65-4,126.07

Finding the Fourth Proportional to 6,639.68, 9,168.65 and 4,126.07

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Solution

The fourth proportional to 6,639.68, 9,168.65 and 4,126.07 is: 5,697.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.68 : 9,168.65 = 4,126.07 : x
  2. Step 2: Convert to fraction form
    6,639.68/9,168.65 = 4,126.07/x
  3. Step 3: Cross multiply
    6,639.68x = 9,168.65 × 4,126.07
  4. Step 4: Simplify right side
    6,639.68x = 37,830,456.18
  5. Step 5: Solve for x
    x = 37,830,456.18/6,639.68
  6. Step 6: Final answer
    x = 5,697.63

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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.