Home / 2,609.05-3,909.91-1,875.19

Finding the Fourth Proportional to 2,609.05, 3,909.91 and 1,875.19

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Solution

The fourth proportional to 2,609.05, 3,909.91 and 1,875.19 is: 2,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.05 : 3,909.91 = 1,875.19 : x
  2. Step 2: Convert to fraction form
    2,609.05/3,909.91 = 1,875.19/x
  3. Step 3: Cross multiply
    2,609.05x = 3,909.91 × 1,875.19
  4. Step 4: Simplify right side
    2,609.05x = 7,331,824.13
  5. Step 5: Solve for x
    x = 7,331,824.13/2,609.05
  6. Step 6: Final answer
    x = 2,810.15

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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.