Home / 1,465.27-2,020.96-934.31

Finding the Fourth Proportional to 1,465.27, 2,020.96 and 934.31

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Solution

The fourth proportional to 1,465.27, 2,020.96 and 934.31 is: 1,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.27 : 2,020.96 = 934.31 : x
  2. Step 2: Convert to fraction form
    1,465.27/2,020.96 = 934.31/x
  3. Step 3: Cross multiply
    1,465.27x = 2,020.96 × 934.31
  4. Step 4: Simplify right side
    1,465.27x = 1,888,209.36
  5. Step 5: Solve for x
    x = 1,888,209.36/1,465.27
  6. Step 6: Final answer
    x = 1,288.64

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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.