Home / 5,110.78-7,664.95-1,412.93

Finding the Fourth Proportional to 5,110.78, 7,664.95 and 1,412.93

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Solution

The fourth proportional to 5,110.78, 7,664.95 and 1,412.93 is: 2,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.78 : 7,664.95 = 1,412.93 : x
  2. Step 2: Convert to fraction form
    5,110.78/7,664.95 = 1,412.93/x
  3. Step 3: Cross multiply
    5,110.78x = 7,664.95 × 1,412.93
  4. Step 4: Simplify right side
    5,110.78x = 10,830,037.80
  5. Step 5: Solve for x
    x = 10,830,037.80/5,110.78
  6. Step 6: Final answer
    x = 2,119.06

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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.