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Finding the Fourth Proportional to 1,881.72, 2,596.74 and 1,053.72

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Solution

The fourth proportional to 1,881.72, 2,596.74 and 1,053.72 is: 1,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.72 : 2,596.74 = 1,053.72 : x
  2. Step 2: Convert to fraction form
    1,881.72/2,596.74 = 1,053.72/x
  3. Step 3: Cross multiply
    1,881.72x = 2,596.74 × 1,053.72
  4. Step 4: Simplify right side
    1,881.72x = 2,736,236.87
  5. Step 5: Solve for x
    x = 2,736,236.87/1,881.72
  6. Step 6: Final answer
    x = 1,454.11

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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.