Home / 3,101.80-4,652.70-1,542.10

Finding the Fourth Proportional to 3,101.80, 4,652.70 and 1,542.10

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Solution

The fourth proportional to 3,101.80, 4,652.70 and 1,542.10 is: 2,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.80 : 4,652.70 = 1,542.10 : x
  2. Step 2: Convert to fraction form
    3,101.80/4,652.70 = 1,542.10/x
  3. Step 3: Cross multiply
    3,101.80x = 4,652.70 × 1,542.10
  4. Step 4: Simplify right side
    3,101.80x = 7,174,928.67
  5. Step 5: Solve for x
    x = 7,174,928.67/3,101.80
  6. Step 6: Final answer
    x = 2,313.15

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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.