Home / 2,999.70-4,491.20-2,011.16

Finding the Fourth Proportional to 2,999.70, 4,491.20 and 2,011.16

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Solution

The fourth proportional to 2,999.70, 4,491.20 and 2,011.16 is: 3,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.70 : 4,491.20 = 2,011.16 : x
  2. Step 2: Convert to fraction form
    2,999.70/4,491.20 = 2,011.16/x
  3. Step 3: Cross multiply
    2,999.70x = 4,491.20 × 2,011.16
  4. Step 4: Simplify right side
    2,999.70x = 9,032,521.79
  5. Step 5: Solve for x
    x = 9,032,521.79/2,999.70
  6. Step 6: Final answer
    x = 3,011.14

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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.