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Finding the Fourth Proportional to 3,680.35, 5,520.53 and 907.02

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Solution

The fourth proportional to 3,680.35, 5,520.53 and 907.02 is: 1,360.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.35 : 5,520.53 = 907.02 : x
  2. Step 2: Convert to fraction form
    3,680.35/5,520.53 = 907.02/x
  3. Step 3: Cross multiply
    3,680.35x = 5,520.53 × 907.02
  4. Step 4: Simplify right side
    3,680.35x = 5,007,233.39
  5. Step 5: Solve for x
    x = 5,007,233.39/3,680.35
  6. Step 6: Final answer
    x = 1,360.53

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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.