Home / 3,247.51-4,480.56-1,987.23

Finding the Fourth Proportional to 3,247.51, 4,480.56 and 1,987.23

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Solution

The fourth proportional to 3,247.51, 4,480.56 and 1,987.23 is: 2,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.51 : 4,480.56 = 1,987.23 : x
  2. Step 2: Convert to fraction form
    3,247.51/4,480.56 = 1,987.23/x
  3. Step 3: Cross multiply
    3,247.51x = 4,480.56 × 1,987.23
  4. Step 4: Simplify right side
    3,247.51x = 8,903,903.25
  5. Step 5: Solve for x
    x = 8,903,903.25/3,247.51
  6. Step 6: Final answer
    x = 2,741.77

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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.