Home / 2,285.74-3,154.30-1,237.80

Finding the Fourth Proportional to 2,285.74, 3,154.30 and 1,237.80

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Solution

The fourth proportional to 2,285.74, 3,154.30 and 1,237.80 is: 1,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.74 : 3,154.30 = 1,237.80 : x
  2. Step 2: Convert to fraction form
    2,285.74/3,154.30 = 1,237.80/x
  3. Step 3: Cross multiply
    2,285.74x = 3,154.30 × 1,237.80
  4. Step 4: Simplify right side
    2,285.74x = 3,904,392.54
  5. Step 5: Solve for x
    x = 3,904,392.54/2,285.74
  6. Step 6: Final answer
    x = 1,708.15

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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.