Home / 4,080.20-5,630.46-2,312.12

Finding the Fourth Proportional to 4,080.20, 5,630.46 and 2,312.12

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Solution

The fourth proportional to 4,080.20, 5,630.46 and 2,312.12 is: 3,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.20 : 5,630.46 = 2,312.12 : x
  2. Step 2: Convert to fraction form
    4,080.20/5,630.46 = 2,312.12/x
  3. Step 3: Cross multiply
    4,080.20x = 5,630.46 × 2,312.12
  4. Step 4: Simplify right side
    4,080.20x = 13,018,299.18
  5. Step 5: Solve for x
    x = 13,018,299.18/4,080.20
  6. Step 6: Final answer
    x = 3,190.60

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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.