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Finding the Fourth Proportional to 3,560.82, 4,913.46 and 1,988.98

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Solution

The fourth proportional to 3,560.82, 4,913.46 and 1,988.98 is: 2,744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.82 : 4,913.46 = 1,988.98 : x
  2. Step 2: Convert to fraction form
    3,560.82/4,913.46 = 1,988.98/x
  3. Step 3: Cross multiply
    3,560.82x = 4,913.46 × 1,988.98
  4. Step 4: Simplify right side
    3,560.82x = 9,772,773.67
  5. Step 5: Solve for x
    x = 9,772,773.67/3,560.82
  6. Step 6: Final answer
    x = 2,744.53

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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.