Home / 2,976.86-4,110.08-2,661.12

Finding the Fourth Proportional to 2,976.86, 4,110.08 and 2,661.12

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Solution

The fourth proportional to 2,976.86, 4,110.08 and 2,661.12 is: 3,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.86 : 4,110.08 = 2,661.12 : x
  2. Step 2: Convert to fraction form
    2,976.86/4,110.08 = 2,661.12/x
  3. Step 3: Cross multiply
    2,976.86x = 4,110.08 × 2,661.12
  4. Step 4: Simplify right side
    2,976.86x = 10,937,402.78
  5. Step 5: Solve for x
    x = 10,937,402.78/2,976.86
  6. Step 6: Final answer
    x = 3,674.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.