Home / 2,089.61-3,135.91-1,543.26

Finding the Fourth Proportional to 2,089.61, 3,135.91 and 1,543.26

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Solution

The fourth proportional to 2,089.61, 3,135.91 and 1,543.26 is: 2,315.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.61 : 3,135.91 = 1,543.26 : x
  2. Step 2: Convert to fraction form
    2,089.61/3,135.91 = 1,543.26/x
  3. Step 3: Cross multiply
    2,089.61x = 3,135.91 × 1,543.26
  4. Step 4: Simplify right side
    2,089.61x = 4,839,524.47
  5. Step 5: Solve for x
    x = 4,839,524.47/2,089.61
  6. Step 6: Final answer
    x = 2,315.99

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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.