Home / 7,101.18-9,799.67-4,118.79

Finding the Fourth Proportional to 7,101.18, 9,799.67 and 4,118.79

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Solution

The fourth proportional to 7,101.18, 9,799.67 and 4,118.79 is: 5,683.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.18 : 9,799.67 = 4,118.79 : x
  2. Step 2: Convert to fraction form
    7,101.18/9,799.67 = 4,118.79/x
  3. Step 3: Cross multiply
    7,101.18x = 9,799.67 × 4,118.79
  4. Step 4: Simplify right side
    7,101.18x = 40,362,756.35
  5. Step 5: Solve for x
    x = 40,362,756.35/7,101.18
  6. Step 6: Final answer
    x = 5,683.95

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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.