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Finding the Fourth Proportional to 1,307.66, 1,971.05 and 1,232.33

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Solution

The fourth proportional to 1,307.66, 1,971.05 and 1,232.33 is: 1,857.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.66 : 1,971.05 = 1,232.33 : x
  2. Step 2: Convert to fraction form
    1,307.66/1,971.05 = 1,232.33/x
  3. Step 3: Cross multiply
    1,307.66x = 1,971.05 × 1,232.33
  4. Step 4: Simplify right side
    1,307.66x = 2,428,968.03
  5. Step 5: Solve for x
    x = 2,428,968.03/1,307.66
  6. Step 6: Final answer
    x = 1,857.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.