Home / 2,239.06-3,089.65-1,294.70

Finding the Fourth Proportional to 2,239.06, 3,089.65 and 1,294.70

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Solution

The fourth proportional to 2,239.06, 3,089.65 and 1,294.70 is: 1,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.06 : 3,089.65 = 1,294.70 : x
  2. Step 2: Convert to fraction form
    2,239.06/3,089.65 = 1,294.70/x
  3. Step 3: Cross multiply
    2,239.06x = 3,089.65 × 1,294.70
  4. Step 4: Simplify right side
    2,239.06x = 4,000,184.99
  5. Step 5: Solve for x
    x = 4,000,184.99/2,239.06
  6. Step 6: Final answer
    x = 1,786.55

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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.