Home / 3,560.45-4,913.34-1,988.55

Finding the Fourth Proportional to 3,560.45, 4,913.34 and 1,988.55

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Solution

The fourth proportional to 3,560.45, 4,913.34 and 1,988.55 is: 2,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.45 : 4,913.34 = 1,988.55 : x
  2. Step 2: Convert to fraction form
    3,560.45/4,913.34 = 1,988.55/x
  3. Step 3: Cross multiply
    3,560.45x = 4,913.34 × 1,988.55
  4. Step 4: Simplify right side
    3,560.45x = 9,770,397.69
  5. Step 5: Solve for x
    x = 9,770,397.69/3,560.45
  6. Step 6: Final answer
    x = 2,744.15

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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.