Home / 3,560.58-4,912.65-1,988.64

Finding the Fourth Proportional to 3,560.58, 4,912.65 and 1,988.64

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Solution

The fourth proportional to 3,560.58, 4,912.65 and 1,988.64 is: 2,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.58 : 4,912.65 = 1,988.64 : x
  2. Step 2: Convert to fraction form
    3,560.58/4,912.65 = 1,988.64/x
  3. Step 3: Cross multiply
    3,560.58x = 4,912.65 × 1,988.64
  4. Step 4: Simplify right side
    3,560.58x = 9,769,492.30
  5. Step 5: Solve for x
    x = 9,769,492.30/3,560.58
  6. Step 6: Final answer
    x = 2,743.79

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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.