Home / 1,758.30-2,637.48-459.77

Finding the Fourth Proportional to 1,758.30, 2,637.48 and 459.77

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Solution

The fourth proportional to 1,758.30, 2,637.48 and 459.77 is: 689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.30 : 2,637.48 = 459.77 : x
  2. Step 2: Convert to fraction form
    1,758.30/2,637.48 = 459.77/x
  3. Step 3: Cross multiply
    1,758.30x = 2,637.48 × 459.77
  4. Step 4: Simplify right side
    1,758.30x = 1,212,644.32
  5. Step 5: Solve for x
    x = 1,212,644.32/1,758.30
  6. Step 6: Final answer
    x = 689.67

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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.