Home / 4,079.12-5,628.90-2,310.40

Finding the Fourth Proportional to 4,079.12, 5,628.90 and 2,310.40

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Solution

The fourth proportional to 4,079.12, 5,628.90 and 2,310.40 is: 3,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.12 : 5,628.90 = 2,310.40 : x
  2. Step 2: Convert to fraction form
    4,079.12/5,628.90 = 2,310.40/x
  3. Step 3: Cross multiply
    4,079.12x = 5,628.90 × 2,310.40
  4. Step 4: Simplify right side
    4,079.12x = 13,005,010.56
  5. Step 5: Solve for x
    x = 13,005,010.56/4,079.12
  6. Step 6: Final answer
    x = 3,188.19

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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.