Home / 5,146.29-7,719.43-2,070.45

Finding the Fourth Proportional to 5,146.29, 7,719.43 and 2,070.45

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Solution

The fourth proportional to 5,146.29, 7,719.43 and 2,070.45 is: 3,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.29 : 7,719.43 = 2,070.45 : x
  2. Step 2: Convert to fraction form
    5,146.29/7,719.43 = 2,070.45/x
  3. Step 3: Cross multiply
    5,146.29x = 7,719.43 × 2,070.45
  4. Step 4: Simplify right side
    5,146.29x = 15,982,693.84
  5. Step 5: Solve for x
    x = 15,982,693.84/5,146.29
  6. Step 6: Final answer
    x = 3,105.67

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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.