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Finding the Fourth Proportional to 2,637.60, 3,636.91 and 1,798.80

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Solution

The fourth proportional to 2,637.60, 3,636.91 and 1,798.80 is: 2,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.60 : 3,636.91 = 1,798.80 : x
  2. Step 2: Convert to fraction form
    2,637.60/3,636.91 = 1,798.80/x
  3. Step 3: Cross multiply
    2,637.60x = 3,636.91 × 1,798.80
  4. Step 4: Simplify right side
    2,637.60x = 6,542,073.71
  5. Step 5: Solve for x
    x = 6,542,073.71/2,637.60
  6. Step 6: Final answer
    x = 2,480.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.