Home / 5,071.21-7,611.13-2,988.16

Finding the Fourth Proportional to 5,071.21, 7,611.13 and 2,988.16

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Solution

The fourth proportional to 5,071.21, 7,611.13 and 2,988.16 is: 4,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.21 : 7,611.13 = 2,988.16 : x
  2. Step 2: Convert to fraction form
    5,071.21/7,611.13 = 2,988.16/x
  3. Step 3: Cross multiply
    5,071.21x = 7,611.13 × 2,988.16
  4. Step 4: Simplify right side
    5,071.21x = 22,743,258.93
  5. Step 5: Solve for x
    x = 22,743,258.93/5,071.21
  6. Step 6: Final answer
    x = 4,484.78

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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.