Home / 2,079.03-2,868.21-1,239.55

Finding the Fourth Proportional to 2,079.03, 2,868.21 and 1,239.55

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Solution

The fourth proportional to 2,079.03, 2,868.21 and 1,239.55 is: 1,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.03 : 2,868.21 = 1,239.55 : x
  2. Step 2: Convert to fraction form
    2,079.03/2,868.21 = 1,239.55/x
  3. Step 3: Cross multiply
    2,079.03x = 2,868.21 × 1,239.55
  4. Step 4: Simplify right side
    2,079.03x = 3,555,298.67
  5. Step 5: Solve for x
    x = 3,555,298.67/2,079.03
  6. Step 6: Final answer
    x = 1,710.07

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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.