Home / 1,943.79-2,682.74-1,147.13

Finding the Fourth Proportional to 1,943.79, 2,682.74 and 1,147.13

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Solution

The fourth proportional to 1,943.79, 2,682.74 and 1,147.13 is: 1,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.79 : 2,682.74 = 1,147.13 : x
  2. Step 2: Convert to fraction form
    1,943.79/2,682.74 = 1,147.13/x
  3. Step 3: Cross multiply
    1,943.79x = 2,682.74 × 1,147.13
  4. Step 4: Simplify right side
    1,943.79x = 3,077,432.39
  5. Step 5: Solve for x
    x = 3,077,432.39/1,943.79
  6. Step 6: Final answer
    x = 1,583.22

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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.