Home / 2,038.61-3,056.68-1,112.88

Finding the Fourth Proportional to 2,038.61, 3,056.68 and 1,112.88

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Solution

The fourth proportional to 2,038.61, 3,056.68 and 1,112.88 is: 1,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.61 : 3,056.68 = 1,112.88 : x
  2. Step 2: Convert to fraction form
    2,038.61/3,056.68 = 1,112.88/x
  3. Step 3: Cross multiply
    2,038.61x = 3,056.68 × 1,112.88
  4. Step 4: Simplify right side
    2,038.61x = 3,401,703.79
  5. Step 5: Solve for x
    x = 3,401,703.79/2,038.61
  6. Step 6: Final answer
    x = 1,668.64

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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.