Home / 3,660.40-5,045.48-2,873.12

Finding the Fourth Proportional to 3,660.40, 5,045.48 and 2,873.12

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Solution

The fourth proportional to 3,660.40, 5,045.48 and 2,873.12 is: 3,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.40 : 5,045.48 = 2,873.12 : x
  2. Step 2: Convert to fraction form
    3,660.40/5,045.48 = 2,873.12/x
  3. Step 3: Cross multiply
    3,660.40x = 5,045.48 × 2,873.12
  4. Step 4: Simplify right side
    3,660.40x = 14,496,269.50
  5. Step 5: Solve for x
    x = 14,496,269.50/3,660.40
  6. Step 6: Final answer
    x = 3,960.30

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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.