Home / 2,543.51-3,815.28-900.08

Finding the Fourth Proportional to 2,543.51, 3,815.28 and 900.08

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Solution

The fourth proportional to 2,543.51, 3,815.28 and 900.08 is: 1,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.51 : 3,815.28 = 900.08 : x
  2. Step 2: Convert to fraction form
    2,543.51/3,815.28 = 900.08/x
  3. Step 3: Cross multiply
    2,543.51x = 3,815.28 × 900.08
  4. Step 4: Simplify right side
    2,543.51x = 3,434,057.22
  5. Step 5: Solve for x
    x = 3,434,057.22/2,543.51
  6. Step 6: Final answer
    x = 1,350.13

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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.