Home / 4,080.16-5,631.52-2,312.80

Finding the Fourth Proportional to 4,080.16, 5,631.52 and 2,312.80

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Solution

The fourth proportional to 4,080.16, 5,631.52 and 2,312.80 is: 3,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.16 : 5,631.52 = 2,312.80 : x
  2. Step 2: Convert to fraction form
    4,080.16/5,631.52 = 2,312.80/x
  3. Step 3: Cross multiply
    4,080.16x = 5,631.52 × 2,312.80
  4. Step 4: Simplify right side
    4,080.16x = 13,024,579.46
  5. Step 5: Solve for x
    x = 13,024,579.46/4,080.16
  6. Step 6: Final answer
    x = 3,192.17

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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.