Home / 1,637.39-2,259.34-938.63

Finding the Fourth Proportional to 1,637.39, 2,259.34 and 938.63

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Solution

The fourth proportional to 1,637.39, 2,259.34 and 938.63 is: 1,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.39 : 2,259.34 = 938.63 : x
  2. Step 2: Convert to fraction form
    1,637.39/2,259.34 = 938.63/x
  3. Step 3: Cross multiply
    1,637.39x = 2,259.34 × 938.63
  4. Step 4: Simplify right side
    1,637.39x = 2,120,670.66
  5. Step 5: Solve for x
    x = 2,120,670.66/1,637.39
  6. Step 6: Final answer
    x = 1,295.16

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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.