Home / 1,685.18-2,527.86-711.38

Finding the Fourth Proportional to 1,685.18, 2,527.86 and 711.38

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Solution

The fourth proportional to 1,685.18, 2,527.86 and 711.38 is: 1,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.18 : 2,527.86 = 711.38 : x
  2. Step 2: Convert to fraction form
    1,685.18/2,527.86 = 711.38/x
  3. Step 3: Cross multiply
    1,685.18x = 2,527.86 × 711.38
  4. Step 4: Simplify right side
    1,685.18x = 1,798,269.05
  5. Step 5: Solve for x
    x = 1,798,269.05/1,685.18
  6. Step 6: Final answer
    x = 1,067.11

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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.