Home / 2,428.75-3,642.36-1,611.35

Finding the Fourth Proportional to 2,428.75, 3,642.36 and 1,611.35

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Solution

The fourth proportional to 2,428.75, 3,642.36 and 1,611.35 is: 2,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.75 : 3,642.36 = 1,611.35 : x
  2. Step 2: Convert to fraction form
    2,428.75/3,642.36 = 1,611.35/x
  3. Step 3: Cross multiply
    2,428.75x = 3,642.36 × 1,611.35
  4. Step 4: Simplify right side
    2,428.75x = 5,869,116.79
  5. Step 5: Solve for x
    x = 5,869,116.79/2,428.75
  6. Step 6: Final answer
    x = 2,416.52

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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.