Home / 2,993.90-4,490.85-1,145.58

Finding the Fourth Proportional to 2,993.90, 4,490.85 and 1,145.58

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Solution

The fourth proportional to 2,993.90, 4,490.85 and 1,145.58 is: 1,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.90 : 4,490.85 = 1,145.58 : x
  2. Step 2: Convert to fraction form
    2,993.90/4,490.85 = 1,145.58/x
  3. Step 3: Cross multiply
    2,993.90x = 4,490.85 × 1,145.58
  4. Step 4: Simplify right side
    2,993.90x = 5,144,637.44
  5. Step 5: Solve for x
    x = 5,144,637.44/2,993.90
  6. Step 6: Final answer
    x = 1,718.37

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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.