Home / 1,611.01-2,223.39-947.83

Finding the Fourth Proportional to 1,611.01, 2,223.39 and 947.83

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Solution

The fourth proportional to 1,611.01, 2,223.39 and 947.83 is: 1,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.01 : 2,223.39 = 947.83 : x
  2. Step 2: Convert to fraction form
    1,611.01/2,223.39 = 947.83/x
  3. Step 3: Cross multiply
    1,611.01x = 2,223.39 × 947.83
  4. Step 4: Simplify right side
    1,611.01x = 2,107,395.74
  5. Step 5: Solve for x
    x = 2,107,395.74/1,611.01
  6. Step 6: Final answer
    x = 1,308.12

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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.