Home / 1,455.72-2,182.62-943.08

Finding the Fourth Proportional to 1,455.72, 2,182.62 and 943.08

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Solution

The fourth proportional to 1,455.72, 2,182.62 and 943.08 is: 1,414.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.72 : 2,182.62 = 943.08 : x
  2. Step 2: Convert to fraction form
    1,455.72/2,182.62 = 943.08/x
  3. Step 3: Cross multiply
    1,455.72x = 2,182.62 × 943.08
  4. Step 4: Simplify right side
    1,455.72x = 2,058,385.27
  5. Step 5: Solve for x
    x = 2,058,385.27/1,455.72
  6. Step 6: Final answer
    x = 1,414.00

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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.