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Finding the Fourth Proportional to 1,726.60, 2,588.36 and 630.74

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Solution

The fourth proportional to 1,726.60, 2,588.36 and 630.74 is: 945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.60 : 2,588.36 = 630.74 : x
  2. Step 2: Convert to fraction form
    1,726.60/2,588.36 = 630.74/x
  3. Step 3: Cross multiply
    1,726.60x = 2,588.36 × 630.74
  4. Step 4: Simplify right side
    1,726.60x = 1,632,582.19
  5. Step 5: Solve for x
    x = 1,632,582.19/1,726.60
  6. Step 6: Final answer
    x = 945.55

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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.