Home / 5,288.78-7,298.67-2,931.07

Finding the Fourth Proportional to 5,288.78, 7,298.67 and 2,931.07

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Solution

The fourth proportional to 5,288.78, 7,298.67 and 2,931.07 is: 4,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.78 : 7,298.67 = 2,931.07 : x
  2. Step 2: Convert to fraction form
    5,288.78/7,298.67 = 2,931.07/x
  3. Step 3: Cross multiply
    5,288.78x = 7,298.67 × 2,931.07
  4. Step 4: Simplify right side
    5,288.78x = 21,392,912.68
  5. Step 5: Solve for x
    x = 21,392,912.68/5,288.78
  6. Step 6: Final answer
    x = 4,044.96

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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.