Home / 2,131.30-2,943.03-1,346.74

Finding the Fourth Proportional to 2,131.30, 2,943.03 and 1,346.74

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Solution

The fourth proportional to 2,131.30, 2,943.03 and 1,346.74 is: 1,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.30 : 2,943.03 = 1,346.74 : x
  2. Step 2: Convert to fraction form
    2,131.30/2,943.03 = 1,346.74/x
  3. Step 3: Cross multiply
    2,131.30x = 2,943.03 × 1,346.74
  4. Step 4: Simplify right side
    2,131.30x = 3,963,496.22
  5. Step 5: Solve for x
    x = 3,963,496.22/2,131.30
  6. Step 6: Final answer
    x = 1,859.66

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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.