Home / 2,378.03-3,567.65-916.79

Finding the Fourth Proportional to 2,378.03, 3,567.65 and 916.79

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Solution

The fourth proportional to 2,378.03, 3,567.65 and 916.79 is: 1,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.03 : 3,567.65 = 916.79 : x
  2. Step 2: Convert to fraction form
    2,378.03/3,567.65 = 916.79/x
  3. Step 3: Cross multiply
    2,378.03x = 3,567.65 × 916.79
  4. Step 4: Simplify right side
    2,378.03x = 3,270,763.42
  5. Step 5: Solve for x
    x = 3,270,763.42/2,378.03
  6. Step 6: Final answer
    x = 1,375.41

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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.