Home / 7,102.09-9,799.20-4,117.34

Finding the Fourth Proportional to 7,102.09, 9,799.20 and 4,117.34

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Solution

The fourth proportional to 7,102.09, 9,799.20 and 4,117.34 is: 5,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.09 : 9,799.20 = 4,117.34 : x
  2. Step 2: Convert to fraction form
    7,102.09/9,799.20 = 4,117.34/x
  3. Step 3: Cross multiply
    7,102.09x = 9,799.20 × 4,117.34
  4. Step 4: Simplify right side
    7,102.09x = 40,346,638.13
  5. Step 5: Solve for x
    x = 40,346,638.13/7,102.09
  6. Step 6: Final answer
    x = 5,680.95

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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.