Home / 3,123.33-4,309.48-1,864.14

Finding the Fourth Proportional to 3,123.33, 4,309.48 and 1,864.14

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Solution

The fourth proportional to 3,123.33, 4,309.48 and 1,864.14 is: 2,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.33 : 4,309.48 = 1,864.14 : x
  2. Step 2: Convert to fraction form
    3,123.33/4,309.48 = 1,864.14/x
  3. Step 3: Cross multiply
    3,123.33x = 4,309.48 × 1,864.14
  4. Step 4: Simplify right side
    3,123.33x = 8,033,469.39
  5. Step 5: Solve for x
    x = 8,033,469.39/3,123.33
  6. Step 6: Final answer
    x = 2,572.08

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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.