Home / 6,290.12-8,680.53-3,637.70

Finding the Fourth Proportional to 6,290.12, 8,680.53 and 3,637.70

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Solution

The fourth proportional to 6,290.12, 8,680.53 and 3,637.70 is: 5,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.12 : 8,680.53 = 3,637.70 : x
  2. Step 2: Convert to fraction form
    6,290.12/8,680.53 = 3,637.70/x
  3. Step 3: Cross multiply
    6,290.12x = 8,680.53 × 3,637.70
  4. Step 4: Simplify right side
    6,290.12x = 31,577,120.58
  5. Step 5: Solve for x
    x = 31,577,120.58/6,290.12
  6. Step 6: Final answer
    x = 5,020.11

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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.