Home / 5,156.89-7,116.51-2,799.03

Finding the Fourth Proportional to 5,156.89, 7,116.51 and 2,799.03

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Solution

The fourth proportional to 5,156.89, 7,116.51 and 2,799.03 is: 3,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.89 : 7,116.51 = 2,799.03 : x
  2. Step 2: Convert to fraction form
    5,156.89/7,116.51 = 2,799.03/x
  3. Step 3: Cross multiply
    5,156.89x = 7,116.51 × 2,799.03
  4. Step 4: Simplify right side
    5,156.89x = 19,919,351.67
  5. Step 5: Solve for x
    x = 19,919,351.67/5,156.89
  6. Step 6: Final answer
    x = 3,862.67

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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.