Home / 2,230.39-3,077.90-1,235.71

Finding the Fourth Proportional to 2,230.39, 3,077.90 and 1,235.71

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Solution

The fourth proportional to 2,230.39, 3,077.90 and 1,235.71 is: 1,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.39 : 3,077.90 = 1,235.71 : x
  2. Step 2: Convert to fraction form
    2,230.39/3,077.90 = 1,235.71/x
  3. Step 3: Cross multiply
    2,230.39x = 3,077.90 × 1,235.71
  4. Step 4: Simplify right side
    2,230.39x = 3,803,376.80
  5. Step 5: Solve for x
    x = 3,803,376.80/2,230.39
  6. Step 6: Final answer
    x = 1,705.26

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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.