Home / 3,477.85-4,799.37-1,905.91

Finding the Fourth Proportional to 3,477.85, 4,799.37 and 1,905.91

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Solution

The fourth proportional to 3,477.85, 4,799.37 and 1,905.91 is: 2,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.85 : 4,799.37 = 1,905.91 : x
  2. Step 2: Convert to fraction form
    3,477.85/4,799.37 = 1,905.91/x
  3. Step 3: Cross multiply
    3,477.85x = 4,799.37 × 1,905.91
  4. Step 4: Simplify right side
    3,477.85x = 9,147,167.28
  5. Step 5: Solve for x
    x = 9,147,167.28/3,477.85
  6. Step 6: Final answer
    x = 2,630.12

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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.