Home / 3,509.13-5,264.72-1,318.02

Finding the Fourth Proportional to 3,509.13, 5,264.72 and 1,318.02

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Solution

The fourth proportional to 3,509.13, 5,264.72 and 1,318.02 is: 1,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.13 : 5,264.72 = 1,318.02 : x
  2. Step 2: Convert to fraction form
    3,509.13/5,264.72 = 1,318.02/x
  3. Step 3: Cross multiply
    3,509.13x = 5,264.72 × 1,318.02
  4. Step 4: Simplify right side
    3,509.13x = 6,939,006.25
  5. Step 5: Solve for x
    x = 6,939,006.25/3,509.13
  6. Step 6: Final answer
    x = 1,977.41

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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.