Home / 2,565.12-3,536.36-2,190.48

Finding the Fourth Proportional to 2,565.12, 3,536.36 and 2,190.48

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Solution

The fourth proportional to 2,565.12, 3,536.36 and 2,190.48 is: 3,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.12 : 3,536.36 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    2,565.12/3,536.36 = 2,190.48/x
  3. Step 3: Cross multiply
    2,565.12x = 3,536.36 × 2,190.48
  4. Step 4: Simplify right side
    2,565.12x = 7,746,325.85
  5. Step 5: Solve for x
    x = 7,746,325.85/2,565.12
  6. Step 6: Final answer
    x = 3,019.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.