Home / 1,721.55-2,376.64-1,133.02

Finding the Fourth Proportional to 1,721.55, 2,376.64 and 1,133.02

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Solution

The fourth proportional to 1,721.55, 2,376.64 and 1,133.02 is: 1,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.55 : 2,376.64 = 1,133.02 : x
  2. Step 2: Convert to fraction form
    1,721.55/2,376.64 = 1,133.02/x
  3. Step 3: Cross multiply
    1,721.55x = 2,376.64 × 1,133.02
  4. Step 4: Simplify right side
    1,721.55x = 2,692,785.04
  5. Step 5: Solve for x
    x = 2,692,785.04/1,721.55
  6. Step 6: Final answer
    x = 1,564.16

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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.