Home / 2,931.25-4,045.14-2,185.87

Finding the Fourth Proportional to 2,931.25, 4,045.14 and 2,185.87

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Solution

The fourth proportional to 2,931.25, 4,045.14 and 2,185.87 is: 3,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.25 : 4,045.14 = 2,185.87 : x
  2. Step 2: Convert to fraction form
    2,931.25/4,045.14 = 2,185.87/x
  3. Step 3: Cross multiply
    2,931.25x = 4,045.14 × 2,185.87
  4. Step 4: Simplify right side
    2,931.25x = 8,842,150.17
  5. Step 5: Solve for x
    x = 8,842,150.17/2,931.25
  6. Step 6: Final answer
    x = 3,016.51

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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.