Home / 2,655.13-3,983.26-900.05

Finding the Fourth Proportional to 2,655.13, 3,983.26 and 900.05

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Solution

The fourth proportional to 2,655.13, 3,983.26 and 900.05 is: 1,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.13 : 3,983.26 = 900.05 : x
  2. Step 2: Convert to fraction form
    2,655.13/3,983.26 = 900.05/x
  3. Step 3: Cross multiply
    2,655.13x = 3,983.26 × 900.05
  4. Step 4: Simplify right side
    2,655.13x = 3,585,108.75
  5. Step 5: Solve for x
    x = 3,585,108.75/2,655.13
  6. Step 6: Final answer
    x = 1,350.26

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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.