Home / 2,320.55-3,480.75-677.12

Finding the Fourth Proportional to 2,320.55, 3,480.75 and 677.12

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Solution

The fourth proportional to 2,320.55, 3,480.75 and 677.12 is: 1,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.55 : 3,480.75 = 677.12 : x
  2. Step 2: Convert to fraction form
    2,320.55/3,480.75 = 677.12/x
  3. Step 3: Cross multiply
    2,320.55x = 3,480.75 × 677.12
  4. Step 4: Simplify right side
    2,320.55x = 2,356,885.44
  5. Step 5: Solve for x
    x = 2,356,885.44/2,320.55
  6. Step 6: Final answer
    x = 1,015.66

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1.5x scale

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.