Home / 1,571.35-2,167.59-1,003.13

Finding the Fourth Proportional to 1,571.35, 2,167.59 and 1,003.13

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Solution

The fourth proportional to 1,571.35, 2,167.59 and 1,003.13 is: 1,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.35 : 2,167.59 = 1,003.13 : x
  2. Step 2: Convert to fraction form
    1,571.35/2,167.59 = 1,003.13/x
  3. Step 3: Cross multiply
    1,571.35x = 2,167.59 × 1,003.13
  4. Step 4: Simplify right side
    1,571.35x = 2,174,387.80
  5. Step 5: Solve for x
    x = 2,174,387.80/1,571.35
  6. Step 6: Final answer
    x = 1,383.77

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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.