Home / 5,313.40-7,969.49-1,418.11

Finding the Fourth Proportional to 5,313.40, 7,969.49 and 1,418.11

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Solution

The fourth proportional to 5,313.40, 7,969.49 and 1,418.11 is: 2,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.40 : 7,969.49 = 1,418.11 : x
  2. Step 2: Convert to fraction form
    5,313.40/7,969.49 = 1,418.11/x
  3. Step 3: Cross multiply
    5,313.40x = 7,969.49 × 1,418.11
  4. Step 4: Simplify right side
    5,313.40x = 11,301,591.77
  5. Step 5: Solve for x
    x = 11,301,591.77/5,313.40
  6. Step 6: Final answer
    x = 2,127.00

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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.