Home / 1,395.28-2,094.78-1,191.16

Finding the Fourth Proportional to 1,395.28, 2,094.78 and 1,191.16

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Solution

The fourth proportional to 1,395.28, 2,094.78 and 1,191.16 is: 1,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.28 : 2,094.78 = 1,191.16 : x
  2. Step 2: Convert to fraction form
    1,395.28/2,094.78 = 1,191.16/x
  3. Step 3: Cross multiply
    1,395.28x = 2,094.78 × 1,191.16
  4. Step 4: Simplify right side
    1,395.28x = 2,495,218.14
  5. Step 5: Solve for x
    x = 2,495,218.14/1,395.28
  6. Step 6: Final answer
    x = 1,788.33

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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.