Home / 2,991.14-4,488.60-1,142.45

Finding the Fourth Proportional to 2,991.14, 4,488.60 and 1,142.45

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Solution

The fourth proportional to 2,991.14, 4,488.60 and 1,142.45 is: 1,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.14 : 4,488.60 = 1,142.45 : x
  2. Step 2: Convert to fraction form
    2,991.14/4,488.60 = 1,142.45/x
  3. Step 3: Cross multiply
    2,991.14x = 4,488.60 × 1,142.45
  4. Step 4: Simplify right side
    2,991.14x = 5,128,001.07
  5. Step 5: Solve for x
    x = 5,128,001.07/2,991.14
  6. Step 6: Final answer
    x = 1,714.40

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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.