Home / 1,336.29-2,005.50-605.91

Finding the Fourth Proportional to 1,336.29, 2,005.50 and 605.91

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Solution

The fourth proportional to 1,336.29, 2,005.50 and 605.91 is: 909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.29 : 2,005.50 = 605.91 : x
  2. Step 2: Convert to fraction form
    1,336.29/2,005.50 = 605.91/x
  3. Step 3: Cross multiply
    1,336.29x = 2,005.50 × 605.91
  4. Step 4: Simplify right side
    1,336.29x = 1,215,152.51
  5. Step 5: Solve for x
    x = 1,215,152.51/1,336.29
  6. Step 6: Final answer
    x = 909.35

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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.