Home / 3,039.90-4,549.05-2,111.10

Finding the Fourth Proportional to 3,039.90, 4,549.05 and 2,111.10

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Solution

The fourth proportional to 3,039.90, 4,549.05 and 2,111.10 is: 3,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.90 : 4,549.05 = 2,111.10 : x
  2. Step 2: Convert to fraction form
    3,039.90/4,549.05 = 2,111.10/x
  3. Step 3: Cross multiply
    3,039.90x = 4,549.05 × 2,111.10
  4. Step 4: Simplify right side
    3,039.90x = 9,603,499.46
  5. Step 5: Solve for x
    x = 9,603,499.46/3,039.90
  6. Step 6: Final answer
    x = 3,159.15

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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.