Home / 4,985.13-6,879.27-2,859.19

Finding the Fourth Proportional to 4,985.13, 6,879.27 and 2,859.19

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Solution

The fourth proportional to 4,985.13, 6,879.27 and 2,859.19 is: 3,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.13 : 6,879.27 = 2,859.19 : x
  2. Step 2: Convert to fraction form
    4,985.13/6,879.27 = 2,859.19/x
  3. Step 3: Cross multiply
    4,985.13x = 6,879.27 × 2,859.19
  4. Step 4: Simplify right side
    4,985.13x = 19,669,091.30
  5. Step 5: Solve for x
    x = 19,669,091.30/4,985.13
  6. Step 6: Final answer
    x = 3,945.55

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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.