Home / 3,877.83-5,355.19-3,315.03

Finding the Fourth Proportional to 3,877.83, 5,355.19 and 3,315.03

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Solution

The fourth proportional to 3,877.83, 5,355.19 and 3,315.03 is: 4,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.83 : 5,355.19 = 3,315.03 : x
  2. Step 2: Convert to fraction form
    3,877.83/5,355.19 = 3,315.03/x
  3. Step 3: Cross multiply
    3,877.83x = 5,355.19 × 3,315.03
  4. Step 4: Simplify right side
    3,877.83x = 17,752,615.51
  5. Step 5: Solve for x
    x = 17,752,615.51/3,877.83
  6. Step 6: Final answer
    x = 4,577.98

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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.