Home / 1,721.43-2,376.81-1,059.17

Finding the Fourth Proportional to 1,721.43, 2,376.81 and 1,059.17

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Solution

The fourth proportional to 1,721.43, 2,376.81 and 1,059.17 is: 1,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.43 : 2,376.81 = 1,059.17 : x
  2. Step 2: Convert to fraction form
    1,721.43/2,376.81 = 1,059.17/x
  3. Step 3: Cross multiply
    1,721.43x = 2,376.81 × 1,059.17
  4. Step 4: Simplify right side
    1,721.43x = 2,517,433.96
  5. Step 5: Solve for x
    x = 2,517,433.96/1,721.43
  6. Step 6: Final answer
    x = 1,462.41

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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.