Home / 5,360.31-7,398.13-3,123.51

Finding the Fourth Proportional to 5,360.31, 7,398.13 and 3,123.51

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Solution

The fourth proportional to 5,360.31, 7,398.13 and 3,123.51 is: 4,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.31 : 7,398.13 = 3,123.51 : x
  2. Step 2: Convert to fraction form
    5,360.31/7,398.13 = 3,123.51/x
  3. Step 3: Cross multiply
    5,360.31x = 7,398.13 × 3,123.51
  4. Step 4: Simplify right side
    5,360.31x = 23,108,133.04
  5. Step 5: Solve for x
    x = 23,108,133.04/5,360.31
  6. Step 6: Final answer
    x = 4,310.97

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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.