Home / 1,931.95-2,668.28-1,301.38

Finding the Fourth Proportional to 1,931.95, 2,668.28 and 1,301.38

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Solution

The fourth proportional to 1,931.95, 2,668.28 and 1,301.38 is: 1,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.95 : 2,668.28 = 1,301.38 : x
  2. Step 2: Convert to fraction form
    1,931.95/2,668.28 = 1,301.38/x
  3. Step 3: Cross multiply
    1,931.95x = 2,668.28 × 1,301.38
  4. Step 4: Simplify right side
    1,931.95x = 3,472,446.23
  5. Step 5: Solve for x
    x = 3,472,446.23/1,931.95
  6. Step 6: Final answer
    x = 1,797.38

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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.