Home / 1,758.40-2,637.61-1,208.93

Finding the Fourth Proportional to 1,758.40, 2,637.61 and 1,208.93

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Solution

The fourth proportional to 1,758.40, 2,637.61 and 1,208.93 is: 1,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.40 : 2,637.61 = 1,208.93 : x
  2. Step 2: Convert to fraction form
    1,758.40/2,637.61 = 1,208.93/x
  3. Step 3: Cross multiply
    1,758.40x = 2,637.61 × 1,208.93
  4. Step 4: Simplify right side
    1,758.40x = 3,188,669.65
  5. Step 5: Solve for x
    x = 3,188,669.65/1,758.40
  6. Step 6: Final answer
    x = 1,813.40

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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.