Home / 2,170.25-2,995.49-1,239.29

Finding the Fourth Proportional to 2,170.25, 2,995.49 and 1,239.29

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Solution

The fourth proportional to 2,170.25, 2,995.49 and 1,239.29 is: 1,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.25 : 2,995.49 = 1,239.29 : x
  2. Step 2: Convert to fraction form
    2,170.25/2,995.49 = 1,239.29/x
  3. Step 3: Cross multiply
    2,170.25x = 2,995.49 × 1,239.29
  4. Step 4: Simplify right side
    2,170.25x = 3,712,280.80
  5. Step 5: Solve for x
    x = 3,712,280.80/2,170.25
  6. Step 6: Final answer
    x = 1,710.53

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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.