Home / 2,177.85-3,004.11-1,293.48

Finding the Fourth Proportional to 2,177.85, 3,004.11 and 1,293.48

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Solution

The fourth proportional to 2,177.85, 3,004.11 and 1,293.48 is: 1,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.85 : 3,004.11 = 1,293.48 : x
  2. Step 2: Convert to fraction form
    2,177.85/3,004.11 = 1,293.48/x
  3. Step 3: Cross multiply
    2,177.85x = 3,004.11 × 1,293.48
  4. Step 4: Simplify right side
    2,177.85x = 3,885,756.20
  5. Step 5: Solve for x
    x = 3,885,756.20/2,177.85
  6. Step 6: Final answer
    x = 1,784.22

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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.