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Finding the Fourth Proportional to 1,881.79, 2,590.79 and 1,549.62

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Solution

The fourth proportional to 1,881.79, 2,590.79 and 1,549.62 is: 2,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.79 : 2,590.79 = 1,549.62 : x
  2. Step 2: Convert to fraction form
    1,881.79/2,590.79 = 1,549.62/x
  3. Step 3: Cross multiply
    1,881.79x = 2,590.79 × 1,549.62
  4. Step 4: Simplify right side
    1,881.79x = 4,014,732.25
  5. Step 5: Solve for x
    x = 4,014,732.25/1,881.79
  6. Step 6: Final answer
    x = 2,133.47

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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.