Home / 5,290.11-7,946.51-3,211.14

Finding the Fourth Proportional to 5,290.11, 7,946.51 and 3,211.14

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Solution

The fourth proportional to 5,290.11, 7,946.51 and 3,211.14 is: 4,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.11 : 7,946.51 = 3,211.14 : x
  2. Step 2: Convert to fraction form
    5,290.11/7,946.51 = 3,211.14/x
  3. Step 3: Cross multiply
    5,290.11x = 7,946.51 × 3,211.14
  4. Step 4: Simplify right side
    5,290.11x = 25,517,369.87
  5. Step 5: Solve for x
    x = 25,517,369.87/5,290.11
  6. Step 6: Final answer
    x = 4,823.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.