Home / 5,207.58-7,186.28-3,111.30

Finding the Fourth Proportional to 5,207.58, 7,186.28 and 3,111.30

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Solution

The fourth proportional to 5,207.58, 7,186.28 and 3,111.30 is: 4,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.58 : 7,186.28 = 3,111.30 : x
  2. Step 2: Convert to fraction form
    5,207.58/7,186.28 = 3,111.30/x
  3. Step 3: Cross multiply
    5,207.58x = 7,186.28 × 3,111.30
  4. Step 4: Simplify right side
    5,207.58x = 22,358,657.41
  5. Step 5: Solve for x
    x = 22,358,657.41/5,207.58
  6. Step 6: Final answer
    x = 4,293.48

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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.