Home / 5,302.78-7,317.31-3,177.75

Finding the Fourth Proportional to 5,302.78, 7,317.31 and 3,177.75

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Solution

The fourth proportional to 5,302.78, 7,317.31 and 3,177.75 is: 4,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302.78 : 7,317.31 = 3,177.75 : x
  2. Step 2: Convert to fraction form
    5,302.78/7,317.31 = 3,177.75/x
  3. Step 3: Cross multiply
    5,302.78x = 7,317.31 × 3,177.75
  4. Step 4: Simplify right side
    5,302.78x = 23,252,575.08
  5. Step 5: Solve for x
    x = 23,252,575.08/5,302.78
  6. Step 6: Final answer
    x = 4,384.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.