Home / 3,297.30-4,947.77-1,981.45

Finding the Fourth Proportional to 3,297.30, 4,947.77 and 1,981.45

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Solution

The fourth proportional to 3,297.30, 4,947.77 and 1,981.45 is: 2,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.30 : 4,947.77 = 1,981.45 : x
  2. Step 2: Convert to fraction form
    3,297.30/4,947.77 = 1,981.45/x
  3. Step 3: Cross multiply
    3,297.30x = 4,947.77 × 1,981.45
  4. Step 4: Simplify right side
    3,297.30x = 9,803,758.87
  5. Step 5: Solve for x
    x = 9,803,758.87/3,297.30
  6. Step 6: Final answer
    x = 2,973.27

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1.5x scale

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.