Home / 5,078.36-7,615.53-1,956.65

Finding the Fourth Proportional to 5,078.36, 7,615.53 and 1,956.65

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Solution

The fourth proportional to 5,078.36, 7,615.53 and 1,956.65 is: 2,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.36 : 7,615.53 = 1,956.65 : x
  2. Step 2: Convert to fraction form
    5,078.36/7,615.53 = 1,956.65/x
  3. Step 3: Cross multiply
    5,078.36x = 7,615.53 × 1,956.65
  4. Step 4: Simplify right side
    5,078.36x = 14,900,888.70
  5. Step 5: Solve for x
    x = 14,900,888.70/5,078.36
  6. Step 6: Final answer
    x = 2,934.20

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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.