Home / 1,423.15-2,134.72-546.05

Finding the Fourth Proportional to 1,423.15, 2,134.72 and 546.05

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Solution

The fourth proportional to 1,423.15, 2,134.72 and 546.05 is: 819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.15 : 2,134.72 = 546.05 : x
  2. Step 2: Convert to fraction form
    1,423.15/2,134.72 = 546.05/x
  3. Step 3: Cross multiply
    1,423.15x = 2,134.72 × 546.05
  4. Step 4: Simplify right side
    1,423.15x = 1,165,662.49
  5. Step 5: Solve for x
    x = 1,165,662.49/1,423.15
  6. Step 6: Final answer
    x = 819.08

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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.