Home / 2,131.16-3,177.95-1,983.24

Finding the Fourth Proportional to 2,131.16, 3,177.95 and 1,983.24

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Solution

The fourth proportional to 2,131.16, 3,177.95 and 1,983.24 is: 2,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.16 : 3,177.95 = 1,983.24 : x
  2. Step 2: Convert to fraction form
    2,131.16/3,177.95 = 1,983.24/x
  3. Step 3: Cross multiply
    2,131.16x = 3,177.95 × 1,983.24
  4. Step 4: Simplify right side
    2,131.16x = 6,302,637.56
  5. Step 5: Solve for x
    x = 6,302,637.56/2,131.16
  6. Step 6: Final answer
    x = 2,957.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.