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Finding the Fourth Proportional to 2,748.80, 3,793.47 and 1,630.40

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Solution

The fourth proportional to 2,748.80, 3,793.47 and 1,630.40 is: 2,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.80 : 3,793.47 = 1,630.40 : x
  2. Step 2: Convert to fraction form
    2,748.80/3,793.47 = 1,630.40/x
  3. Step 3: Cross multiply
    2,748.80x = 3,793.47 × 1,630.40
  4. Step 4: Simplify right side
    2,748.80x = 6,184,873.49
  5. Step 5: Solve for x
    x = 6,184,873.49/2,748.80
  6. Step 6: Final answer
    x = 2,250.03

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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.