Home / 2,431.11-3,643.83-1,045.20

Finding the Fourth Proportional to 2,431.11, 3,643.83 and 1,045.20

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Solution

The fourth proportional to 2,431.11, 3,643.83 and 1,045.20 is: 1,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.11 : 3,643.83 = 1,045.20 : x
  2. Step 2: Convert to fraction form
    2,431.11/3,643.83 = 1,045.20/x
  3. Step 3: Cross multiply
    2,431.11x = 3,643.83 × 1,045.20
  4. Step 4: Simplify right side
    2,431.11x = 3,808,531.12
  5. Step 5: Solve for x
    x = 3,808,531.12/2,431.11
  6. Step 6: Final answer
    x = 1,566.58

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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.