Home / 5,110.16-7,665.28-1,412.60

Finding the Fourth Proportional to 5,110.16, 7,665.28 and 1,412.60

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Solution

The fourth proportional to 5,110.16, 7,665.28 and 1,412.60 is: 2,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.16 : 7,665.28 = 1,412.60 : x
  2. Step 2: Convert to fraction form
    5,110.16/7,665.28 = 1,412.60/x
  3. Step 3: Cross multiply
    5,110.16x = 7,665.28 × 1,412.60
  4. Step 4: Simplify right side
    5,110.16x = 10,827,974.53
  5. Step 5: Solve for x
    x = 10,827,974.53/5,110.16
  6. Step 6: Final answer
    x = 2,118.91

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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.