Home / 5,207.52-7,185.60-3,111.84

Finding the Fourth Proportional to 5,207.52, 7,185.60 and 3,111.84

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Solution

The fourth proportional to 5,207.52, 7,185.60 and 3,111.84 is: 4,293.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.52 : 7,185.60 = 3,111.84 : x
  2. Step 2: Convert to fraction form
    5,207.52/7,185.60 = 3,111.84/x
  3. Step 3: Cross multiply
    5,207.52x = 7,185.60 × 3,111.84
  4. Step 4: Simplify right side
    5,207.52x = 22,360,437.50
  5. Step 5: Solve for x
    x = 22,360,437.50/5,207.52
  6. Step 6: Final answer
    x = 4,293.87

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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.