Home / 3,845.10-5,767.65-1,248.30

Finding the Fourth Proportional to 3,845.10, 5,767.65 and 1,248.30

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Solution

The fourth proportional to 3,845.10, 5,767.65 and 1,248.30 is: 1,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.10 : 5,767.65 = 1,248.30 : x
  2. Step 2: Convert to fraction form
    3,845.10/5,767.65 = 1,248.30/x
  3. Step 3: Cross multiply
    3,845.10x = 5,767.65 × 1,248.30
  4. Step 4: Simplify right side
    3,845.10x = 7,199,757.50
  5. Step 5: Solve for x
    x = 7,199,757.50/3,845.10
  6. Step 6: Final answer
    x = 1,872.45

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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.