Home / 1,758.12-2,637.18-459.59

Finding the Fourth Proportional to 1,758.12, 2,637.18 and 459.59

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Solution

The fourth proportional to 1,758.12, 2,637.18 and 459.59 is: 689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.12 : 2,637.18 = 459.59 : x
  2. Step 2: Convert to fraction form
    1,758.12/2,637.18 = 459.59/x
  3. Step 3: Cross multiply
    1,758.12x = 2,637.18 × 459.59
  4. Step 4: Simplify right side
    1,758.12x = 1,212,008.37
  5. Step 5: Solve for x
    x = 1,212,008.37/1,758.12
  6. Step 6: Final answer
    x = 689.38

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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.