Home / 4,080.43-5,630.88-2,312.20

Finding the Fourth Proportional to 4,080.43, 5,630.88 and 2,312.20

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Solution

The fourth proportional to 4,080.43, 5,630.88 and 2,312.20 is: 3,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.43 : 5,630.88 = 2,312.20 : x
  2. Step 2: Convert to fraction form
    4,080.43/5,630.88 = 2,312.20/x
  3. Step 3: Cross multiply
    4,080.43x = 5,630.88 × 2,312.20
  4. Step 4: Simplify right side
    4,080.43x = 13,019,720.74
  5. Step 5: Solve for x
    x = 13,019,720.74/4,080.43
  6. Step 6: Final answer
    x = 3,190.77

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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.