Home / 3,717.59-5,130.23-2,145.65

Finding the Fourth Proportional to 3,717.59, 5,130.23 and 2,145.65

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Solution

The fourth proportional to 3,717.59, 5,130.23 and 2,145.65 is: 2,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.59 : 5,130.23 = 2,145.65 : x
  2. Step 2: Convert to fraction form
    3,717.59/5,130.23 = 2,145.65/x
  3. Step 3: Cross multiply
    3,717.59x = 5,130.23 × 2,145.65
  4. Step 4: Simplify right side
    3,717.59x = 11,007,641.62
  5. Step 5: Solve for x
    x = 11,007,641.62/3,717.59
  6. Step 6: Final answer
    x = 2,960.97

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1.5x scale

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.