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Finding the Fourth Proportional to 1,656.69, 2,472.22 and 1,472.64

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Solution

The fourth proportional to 1,656.69, 2,472.22 and 1,472.64 is: 2,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.69 : 2,472.22 = 1,472.64 : x
  2. Step 2: Convert to fraction form
    1,656.69/2,472.22 = 1,472.64/x
  3. Step 3: Cross multiply
    1,656.69x = 2,472.22 × 1,472.64
  4. Step 4: Simplify right side
    1,656.69x = 3,640,690.06
  5. Step 5: Solve for x
    x = 3,640,690.06/1,656.69
  6. Step 6: Final answer
    x = 2,197.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.