Home / 3,993.31-5,510.99-2,400.45

Finding the Fourth Proportional to 3,993.31, 5,510.99 and 2,400.45

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Solution

The fourth proportional to 3,993.31, 5,510.99 and 2,400.45 is: 3,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.31 : 5,510.99 = 2,400.45 : x
  2. Step 2: Convert to fraction form
    3,993.31/5,510.99 = 2,400.45/x
  3. Step 3: Cross multiply
    3,993.31x = 5,510.99 × 2,400.45
  4. Step 4: Simplify right side
    3,993.31x = 13,228,855.95
  5. Step 5: Solve for x
    x = 13,228,855.95/3,993.31
  6. Step 6: Final answer
    x = 3,312.75

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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.