Home / 3,117.65-4,656.25-2,824.56

Finding the Fourth Proportional to 3,117.65, 4,656.25 and 2,824.56

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Solution

The fourth proportional to 3,117.65, 4,656.25 and 2,824.56 is: 4,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.65 : 4,656.25 = 2,824.56 : x
  2. Step 2: Convert to fraction form
    3,117.65/4,656.25 = 2,824.56/x
  3. Step 3: Cross multiply
    3,117.65x = 4,656.25 × 2,824.56
  4. Step 4: Simplify right side
    3,117.65x = 13,151,861.03
  5. Step 5: Solve for x
    x = 13,151,861.03/3,117.65
  6. Step 6: Final answer
    x = 4,218.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.