Home / 3,118.48-4,300.20-2,805.04

Finding the Fourth Proportional to 3,118.48, 4,300.20 and 2,805.04

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Solution

The fourth proportional to 3,118.48, 4,300.20 and 2,805.04 is: 3,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.48 : 4,300.20 = 2,805.04 : x
  2. Step 2: Convert to fraction form
    3,118.48/4,300.20 = 2,805.04/x
  3. Step 3: Cross multiply
    3,118.48x = 4,300.20 × 2,805.04
  4. Step 4: Simplify right side
    3,118.48x = 12,062,233.01
  5. Step 5: Solve for x
    x = 12,062,233.01/3,118.48
  6. Step 6: Final answer
    x = 3,867.98

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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.