Home / 1,658.80-2,292.06-1,240.84

Finding the Fourth Proportional to 1,658.80, 2,292.06 and 1,240.84

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Solution

The fourth proportional to 1,658.80, 2,292.06 and 1,240.84 is: 1,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.80 : 2,292.06 = 1,240.84 : x
  2. Step 2: Convert to fraction form
    1,658.80/2,292.06 = 1,240.84/x
  3. Step 3: Cross multiply
    1,658.80x = 2,292.06 × 1,240.84
  4. Step 4: Simplify right side
    1,658.80x = 2,844,079.73
  5. Step 5: Solve for x
    x = 2,844,079.73/1,658.80
  6. Step 6: Final answer
    x = 1,714.54

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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.