Home / 2,239.74-3,089.91-1,355.34

Finding the Fourth Proportional to 2,239.74, 3,089.91 and 1,355.34

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Solution

The fourth proportional to 2,239.74, 3,089.91 and 1,355.34 is: 1,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.74 : 3,089.91 = 1,355.34 : x
  2. Step 2: Convert to fraction form
    2,239.74/3,089.91 = 1,355.34/x
  3. Step 3: Cross multiply
    2,239.74x = 3,089.91 × 1,355.34
  4. Step 4: Simplify right side
    2,239.74x = 4,187,878.62
  5. Step 5: Solve for x
    x = 4,187,878.62/2,239.74
  6. Step 6: Final answer
    x = 1,869.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.