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Finding the Fourth Proportional to 1,801.64, 2,486.58 and 1,719.56

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Solution

The fourth proportional to 1,801.64, 2,486.58 and 1,719.56 is: 2,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.64 : 2,486.58 = 1,719.56 : x
  2. Step 2: Convert to fraction form
    1,801.64/2,486.58 = 1,719.56/x
  3. Step 3: Cross multiply
    1,801.64x = 2,486.58 × 1,719.56
  4. Step 4: Simplify right side
    1,801.64x = 4,275,823.50
  5. Step 5: Solve for x
    x = 4,275,823.50/1,801.64
  6. Step 6: Final answer
    x = 2,373.30

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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.