Home / 1,225.26-1,836.50-609.40

Finding the Fourth Proportional to 1,225.26, 1,836.50 and 609.40

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Solution

The fourth proportional to 1,225.26, 1,836.50 and 609.40 is: 913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.26 : 1,836.50 = 609.40 : x
  2. Step 2: Convert to fraction form
    1,225.26/1,836.50 = 609.40/x
  3. Step 3: Cross multiply
    1,225.26x = 1,836.50 × 609.40
  4. Step 4: Simplify right side
    1,225.26x = 1,119,163.10
  5. Step 5: Solve for x
    x = 1,119,163.10/1,225.26
  6. Step 6: Final answer
    x = 913.41

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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.