Home / 2,343.76-3,515.68-1,931.28

Finding the Fourth Proportional to 2,343.76, 3,515.68 and 1,931.28

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Solution

The fourth proportional to 2,343.76, 3,515.68 and 1,931.28 is: 2,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.76 : 3,515.68 = 1,931.28 : x
  2. Step 2: Convert to fraction form
    2,343.76/3,515.68 = 1,931.28/x
  3. Step 3: Cross multiply
    2,343.76x = 3,515.68 × 1,931.28
  4. Step 4: Simplify right side
    2,343.76x = 6,789,762.47
  5. Step 5: Solve for x
    x = 6,789,762.47/2,343.76
  6. Step 6: Final answer
    x = 2,896.95

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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.