Home / 5,113.29-7,669.91-1,415.50

Finding the Fourth Proportional to 5,113.29, 7,669.91 and 1,415.50

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Solution

The fourth proportional to 5,113.29, 7,669.91 and 1,415.50 is: 2,123.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.29 : 7,669.91 = 1,415.50 : x
  2. Step 2: Convert to fraction form
    5,113.29/7,669.91 = 1,415.50/x
  3. Step 3: Cross multiply
    5,113.29x = 7,669.91 × 1,415.50
  4. Step 4: Simplify right side
    5,113.29x = 10,856,741.97
  5. Step 5: Solve for x
    x = 10,856,741.97/5,113.29
  6. Step 6: Final answer
    x = 2,123.24

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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.