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Finding the Fourth Proportional to 1,758.36, 2,637.35 and 459.83

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Solution

The fourth proportional to 1,758.36, 2,637.35 and 459.83 is: 689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.36 : 2,637.35 = 459.83 : x
  2. Step 2: Convert to fraction form
    1,758.36/2,637.35 = 459.83/x
  3. Step 3: Cross multiply
    1,758.36x = 2,637.35 × 459.83
  4. Step 4: Simplify right side
    1,758.36x = 1,212,719.46
  5. Step 5: Solve for x
    x = 1,212,719.46/1,758.36
  6. Step 6: Final answer
    x = 689.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.