Home / 1,943.79-2,682.89-1,356.13

Finding the Fourth Proportional to 1,943.79, 2,682.89 and 1,356.13

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Solution

The fourth proportional to 1,943.79, 2,682.89 and 1,356.13 is: 1,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.79 : 2,682.89 = 1,356.13 : x
  2. Step 2: Convert to fraction form
    1,943.79/2,682.89 = 1,356.13/x
  3. Step 3: Cross multiply
    1,943.79x = 2,682.89 × 1,356.13
  4. Step 4: Simplify right side
    1,943.79x = 3,638,347.62
  5. Step 5: Solve for x
    x = 3,638,347.62/1,943.79
  6. Step 6: Final answer
    x = 1,871.78

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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.