Home / 4,085.08-5,637.74-3,420.79

Finding the Fourth Proportional to 4,085.08, 5,637.74 and 3,420.79

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Solution

The fourth proportional to 4,085.08, 5,637.74 and 3,420.79 is: 4,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.08 : 5,637.74 = 3,420.79 : x
  2. Step 2: Convert to fraction form
    4,085.08/5,637.74 = 3,420.79/x
  3. Step 3: Cross multiply
    4,085.08x = 5,637.74 × 3,420.79
  4. Step 4: Simplify right side
    4,085.08x = 19,285,493.42
  5. Step 5: Solve for x
    x = 19,285,493.42/4,085.08
  6. Step 6: Final answer
    x = 4,720.96

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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.