Home / 1,611.02-2,223.07-1,087.76

Finding the Fourth Proportional to 1,611.02, 2,223.07 and 1,087.76

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Solution

The fourth proportional to 1,611.02, 2,223.07 and 1,087.76 is: 1,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.02 : 2,223.07 = 1,087.76 : x
  2. Step 2: Convert to fraction form
    1,611.02/2,223.07 = 1,087.76/x
  3. Step 3: Cross multiply
    1,611.02x = 2,223.07 × 1,087.76
  4. Step 4: Simplify right side
    1,611.02x = 2,418,166.62
  5. Step 5: Solve for x
    x = 2,418,166.62/1,611.02
  6. Step 6: Final answer
    x = 1,501.02

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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.