Home / 1,542.34-2,313.54-388.10

Finding the Fourth Proportional to 1,542.34, 2,313.54 and 388.10

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Solution

The fourth proportional to 1,542.34, 2,313.54 and 388.10 is: 582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.34 : 2,313.54 = 388.10 : x
  2. Step 2: Convert to fraction form
    1,542.34/2,313.54 = 388.10/x
  3. Step 3: Cross multiply
    1,542.34x = 2,313.54 × 388.10
  4. Step 4: Simplify right side
    1,542.34x = 897,884.87
  5. Step 5: Solve for x
    x = 897,884.87/1,542.34
  6. Step 6: Final answer
    x = 582.16

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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.