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Finding the Fourth Proportional to 1,749.09, 2,623.83 and 578.79

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Solution

The fourth proportional to 1,749.09, 2,623.83 and 578.79 is: 868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.09 : 2,623.83 = 578.79 : x
  2. Step 2: Convert to fraction form
    1,749.09/2,623.83 = 578.79/x
  3. Step 3: Cross multiply
    1,749.09x = 2,623.83 × 578.79
  4. Step 4: Simplify right side
    1,749.09x = 1,518,646.57
  5. Step 5: Solve for x
    x = 1,518,646.57/1,749.09
  6. Step 6: Final answer
    x = 868.25

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1.5x scale

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.