Home / 1,647.12-2,466.12-1,316.48

Finding the Fourth Proportional to 1,647.12, 2,466.12 and 1,316.48

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Solution

The fourth proportional to 1,647.12, 2,466.12 and 1,316.48 is: 1,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.12 : 2,466.12 = 1,316.48 : x
  2. Step 2: Convert to fraction form
    1,647.12/2,466.12 = 1,316.48/x
  3. Step 3: Cross multiply
    1,647.12x = 2,466.12 × 1,316.48
  4. Step 4: Simplify right side
    1,647.12x = 3,246,597.66
  5. Step 5: Solve for x
    x = 3,246,597.66/1,647.12
  6. Step 6: Final answer
    x = 1,971.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.