Home / 1,411.25-2,115.50-589.76

Finding the Fourth Proportional to 1,411.25, 2,115.50 and 589.76

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Solution

The fourth proportional to 1,411.25, 2,115.50 and 589.76 is: 884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.25 : 2,115.50 = 589.76 : x
  2. Step 2: Convert to fraction form
    1,411.25/2,115.50 = 589.76/x
  3. Step 3: Cross multiply
    1,411.25x = 2,115.50 × 589.76
  4. Step 4: Simplify right side
    1,411.25x = 1,247,623.75
  5. Step 5: Solve for x
    x = 1,247,623.75/1,411.25
  6. Step 6: Final answer
    x = 884.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.