Home / 2,118.47-3,177.90-1,022.13

Finding the Fourth Proportional to 2,118.47, 3,177.90 and 1,022.13

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Solution

The fourth proportional to 2,118.47, 3,177.90 and 1,022.13 is: 1,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.47 : 3,177.90 = 1,022.13 : x
  2. Step 2: Convert to fraction form
    2,118.47/3,177.90 = 1,022.13/x
  3. Step 3: Cross multiply
    2,118.47x = 3,177.90 × 1,022.13
  4. Step 4: Simplify right side
    2,118.47x = 3,248,226.93
  5. Step 5: Solve for x
    x = 3,248,226.93/2,118.47
  6. Step 6: Final answer
    x = 1,533.29

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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.