Home / 3,313.61-4,971.29-1,122.02

Finding the Fourth Proportional to 3,313.61, 4,971.29 and 1,122.02

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Solution

The fourth proportional to 3,313.61, 4,971.29 and 1,122.02 is: 1,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.61 : 4,971.29 = 1,122.02 : x
  2. Step 2: Convert to fraction form
    3,313.61/4,971.29 = 1,122.02/x
  3. Step 3: Cross multiply
    3,313.61x = 4,971.29 × 1,122.02
  4. Step 4: Simplify right side
    3,313.61x = 5,577,886.81
  5. Step 5: Solve for x
    x = 5,577,886.81/3,313.61
  6. Step 6: Final answer
    x = 1,683.33

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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.