Home / 2,993.18-4,132.77-2,155.46

Finding the Fourth Proportional to 2,993.18, 4,132.77 and 2,155.46

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Solution

The fourth proportional to 2,993.18, 4,132.77 and 2,155.46 is: 2,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.18 : 4,132.77 = 2,155.46 : x
  2. Step 2: Convert to fraction form
    2,993.18/4,132.77 = 2,155.46/x
  3. Step 3: Cross multiply
    2,993.18x = 4,132.77 × 2,155.46
  4. Step 4: Simplify right side
    2,993.18x = 8,908,020.42
  5. Step 5: Solve for x
    x = 8,908,020.42/2,993.18
  6. Step 6: Final answer
    x = 2,976.11

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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.