Home / 5,410.51-8,115.79-1,712.76

Finding the Fourth Proportional to 5,410.51, 8,115.79 and 1,712.76

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Solution

The fourth proportional to 5,410.51, 8,115.79 and 1,712.76 is: 2,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.51 : 8,115.79 = 1,712.76 : x
  2. Step 2: Convert to fraction form
    5,410.51/8,115.79 = 1,712.76/x
  3. Step 3: Cross multiply
    5,410.51x = 8,115.79 × 1,712.76
  4. Step 4: Simplify right side
    5,410.51x = 13,900,351.34
  5. Step 5: Solve for x
    x = 13,900,351.34/5,410.51
  6. Step 6: Final answer
    x = 2,569.14

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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.