Home / 6,630.50-9,149.65-3,646.06

Finding the Fourth Proportional to 6,630.50, 9,149.65 and 3,646.06

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Solution

The fourth proportional to 6,630.50, 9,149.65 and 3,646.06 is: 5,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.50 : 9,149.65 = 3,646.06 : x
  2. Step 2: Convert to fraction form
    6,630.50/9,149.65 = 3,646.06/x
  3. Step 3: Cross multiply
    6,630.50x = 9,149.65 × 3,646.06
  4. Step 4: Simplify right side
    6,630.50x = 33,360,172.88
  5. Step 5: Solve for x
    x = 33,360,172.88/6,630.50
  6. Step 6: Final answer
    x = 5,031.32

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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.