Home / 2,131.16-2,941.01-1,246.79

Finding the Fourth Proportional to 2,131.16, 2,941.01 and 1,246.79

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Solution

The fourth proportional to 2,131.16, 2,941.01 and 1,246.79 is: 1,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.16 : 2,941.01 = 1,246.79 : x
  2. Step 2: Convert to fraction form
    2,131.16/2,941.01 = 1,246.79/x
  3. Step 3: Cross multiply
    2,131.16x = 2,941.01 × 1,246.79
  4. Step 4: Simplify right side
    2,131.16x = 3,666,800.92
  5. Step 5: Solve for x
    x = 3,666,800.92/2,131.16
  6. Step 6: Final answer
    x = 1,720.57

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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.