Home / 1,571.03-2,170.91-1,197.35

Finding the Fourth Proportional to 1,571.03, 2,170.91 and 1,197.35

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Solution

The fourth proportional to 1,571.03, 2,170.91 and 1,197.35 is: 1,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.03 : 2,170.91 = 1,197.35 : x
  2. Step 2: Convert to fraction form
    1,571.03/2,170.91 = 1,197.35/x
  3. Step 3: Cross multiply
    1,571.03x = 2,170.91 × 1,197.35
  4. Step 4: Simplify right side
    1,571.03x = 2,599,347.51
  5. Step 5: Solve for x
    x = 2,599,347.51/1,571.03
  6. Step 6: Final answer
    x = 1,654.55

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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.