Home / 3,578.01-4,937.58-1,984.77

Finding the Fourth Proportional to 3,578.01, 4,937.58 and 1,984.77

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Solution

The fourth proportional to 3,578.01, 4,937.58 and 1,984.77 is: 2,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.01 : 4,937.58 = 1,984.77 : x
  2. Step 2: Convert to fraction form
    3,578.01/4,937.58 = 1,984.77/x
  3. Step 3: Cross multiply
    3,578.01x = 4,937.58 × 1,984.77
  4. Step 4: Simplify right side
    3,578.01x = 9,799,960.66
  5. Step 5: Solve for x
    x = 9,799,960.66/3,578.01
  6. Step 6: Final answer
    x = 2,738.94

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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.