Home / 1,637.18-2,258.43-1,138.96

Finding the Fourth Proportional to 1,637.18, 2,258.43 and 1,138.96

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Solution

The fourth proportional to 1,637.18, 2,258.43 and 1,138.96 is: 1,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.18 : 2,258.43 = 1,138.96 : x
  2. Step 2: Convert to fraction form
    1,637.18/2,258.43 = 1,138.96/x
  3. Step 3: Cross multiply
    1,637.18x = 2,258.43 × 1,138.96
  4. Step 4: Simplify right side
    1,637.18x = 2,572,266.39
  5. Step 5: Solve for x
    x = 2,572,266.39/1,637.18
  6. Step 6: Final answer
    x = 1,571.16

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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.