Home / 2,289.41-3,159.59-1,294.87

Finding the Fourth Proportional to 2,289.41, 3,159.59 and 1,294.87

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Solution

The fourth proportional to 2,289.41, 3,159.59 and 1,294.87 is: 1,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.41 : 3,159.59 = 1,294.87 : x
  2. Step 2: Convert to fraction form
    2,289.41/3,159.59 = 1,294.87/x
  3. Step 3: Cross multiply
    2,289.41x = 3,159.59 × 1,294.87
  4. Step 4: Simplify right side
    2,289.41x = 4,091,243.93
  5. Step 5: Solve for x
    x = 4,091,243.93/2,289.41
  6. Step 6: Final answer
    x = 1,787.03

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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.