Home / 1,423.30-2,124.05-1,096.90

Finding the Fourth Proportional to 1,423.30, 2,124.05 and 1,096.90

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Solution

The fourth proportional to 1,423.30, 2,124.05 and 1,096.90 is: 1,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.30 : 2,124.05 = 1,096.90 : x
  2. Step 2: Convert to fraction form
    1,423.30/2,124.05 = 1,096.90/x
  3. Step 3: Cross multiply
    1,423.30x = 2,124.05 × 1,096.90
  4. Step 4: Simplify right side
    1,423.30x = 2,329,864.96
  5. Step 5: Solve for x
    x = 2,329,864.96/1,423.30
  6. Step 6: Final answer
    x = 1,636.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.