Home / 1,513.26-2,271.72-900.90

Finding the Fourth Proportional to 1,513.26, 2,271.72 and 900.90

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Solution

The fourth proportional to 1,513.26, 2,271.72 and 900.90 is: 1,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.26 : 2,271.72 = 900.90 : x
  2. Step 2: Convert to fraction form
    1,513.26/2,271.72 = 900.90/x
  3. Step 3: Cross multiply
    1,513.26x = 2,271.72 × 900.90
  4. Step 4: Simplify right side
    1,513.26x = 2,046,592.55
  5. Step 5: Solve for x
    x = 2,046,592.55/1,513.26
  6. Step 6: Final answer
    x = 1,352.44

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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.