Home / 2,080.16-3,117.84-1,039.10

Finding the Fourth Proportional to 2,080.16, 3,117.84 and 1,039.10

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Solution

The fourth proportional to 2,080.16, 3,117.84 and 1,039.10 is: 1,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.16 : 3,117.84 = 1,039.10 : x
  2. Step 2: Convert to fraction form
    2,080.16/3,117.84 = 1,039.10/x
  3. Step 3: Cross multiply
    2,080.16x = 3,117.84 × 1,039.10
  4. Step 4: Simplify right side
    2,080.16x = 3,239,731.95
  5. Step 5: Solve for x
    x = 3,239,731.95/2,080.16
  6. Step 6: Final answer
    x = 1,557.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.