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Finding the Fourth Proportional to 1,721.36, 2,375.47 and 975.37

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Solution

The fourth proportional to 1,721.36, 2,375.47 and 975.37 is: 1,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.36 : 2,375.47 = 975.37 : x
  2. Step 2: Convert to fraction form
    1,721.36/2,375.47 = 975.37/x
  3. Step 3: Cross multiply
    1,721.36x = 2,375.47 × 975.37
  4. Step 4: Simplify right side
    1,721.36x = 2,316,962.17
  5. Step 5: Solve for x
    x = 2,316,962.17/1,721.36
  6. Step 6: Final answer
    x = 1,346.01

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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.