Home / 6,639.04-9,161.90-3,655.18

Finding the Fourth Proportional to 6,639.04, 9,161.90 and 3,655.18

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Solution

The fourth proportional to 6,639.04, 9,161.90 and 3,655.18 is: 5,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.04 : 9,161.90 = 3,655.18 : x
  2. Step 2: Convert to fraction form
    6,639.04/9,161.90 = 3,655.18/x
  3. Step 3: Cross multiply
    6,639.04x = 9,161.90 × 3,655.18
  4. Step 4: Simplify right side
    6,639.04x = 33,488,393.64
  5. Step 5: Solve for x
    x = 33,488,393.64/6,639.04
  6. Step 6: Final answer
    x = 5,044.16

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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.