Home / 1,637.81-2,258.90-1,105.85

Finding the Fourth Proportional to 1,637.81, 2,258.90 and 1,105.85

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Solution

The fourth proportional to 1,637.81, 2,258.90 and 1,105.85 is: 1,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.81 : 2,258.90 = 1,105.85 : x
  2. Step 2: Convert to fraction form
    1,637.81/2,258.90 = 1,105.85/x
  3. Step 3: Cross multiply
    1,637.81x = 2,258.90 × 1,105.85
  4. Step 4: Simplify right side
    1,637.81x = 2,497,996.04
  5. Step 5: Solve for x
    x = 2,497,996.04/1,637.81
  6. Step 6: Final answer
    x = 1,525.21

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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.