Home / 2,079.99-2,870.97-1,240.42

Finding the Fourth Proportional to 2,079.99, 2,870.97 and 1,240.42

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Solution

The fourth proportional to 2,079.99, 2,870.97 and 1,240.42 is: 1,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.99 : 2,870.97 = 1,240.42 : x
  2. Step 2: Convert to fraction form
    2,079.99/2,870.97 = 1,240.42/x
  3. Step 3: Cross multiply
    2,079.99x = 2,870.97 × 1,240.42
  4. Step 4: Simplify right side
    2,079.99x = 3,561,208.61
  5. Step 5: Solve for x
    x = 3,561,208.61/2,079.99
  6. Step 6: Final answer
    x = 1,712.13

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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.