Home / 1,909.10-2,860.29-1,672.19

Finding the Fourth Proportional to 1,909.10, 2,860.29 and 1,672.19

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Solution

The fourth proportional to 1,909.10, 2,860.29 and 1,672.19 is: 2,505.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.10 : 2,860.29 = 1,672.19 : x
  2. Step 2: Convert to fraction form
    1,909.10/2,860.29 = 1,672.19/x
  3. Step 3: Cross multiply
    1,909.10x = 2,860.29 × 1,672.19
  4. Step 4: Simplify right side
    1,909.10x = 4,782,948.34
  5. Step 5: Solve for x
    x = 4,782,948.34/1,909.10
  6. Step 6: Final answer
    x = 2,505.34

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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.