Home / 2,265.89-3,123.80-1,937.81

Finding the Fourth Proportional to 2,265.89, 3,123.80 and 1,937.81

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Solution

The fourth proportional to 2,265.89, 3,123.80 and 1,937.81 is: 2,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.89 : 3,123.80 = 1,937.81 : x
  2. Step 2: Convert to fraction form
    2,265.89/3,123.80 = 1,937.81/x
  3. Step 3: Cross multiply
    2,265.89x = 3,123.80 × 1,937.81
  4. Step 4: Simplify right side
    2,265.89x = 6,053,321.19
  5. Step 5: Solve for x
    x = 6,053,321.19/2,265.89
  6. Step 6: Final answer
    x = 2,671.50

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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.