Home / 4,985.10-6,879.75-2,746.98

Finding the Fourth Proportional to 4,985.10, 6,879.75 and 2,746.98

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Solution

The fourth proportional to 4,985.10, 6,879.75 and 2,746.98 is: 3,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.10 : 6,879.75 = 2,746.98 : x
  2. Step 2: Convert to fraction form
    4,985.10/6,879.75 = 2,746.98/x
  3. Step 3: Cross multiply
    4,985.10x = 6,879.75 × 2,746.98
  4. Step 4: Simplify right side
    4,985.10x = 18,898,496.12
  5. Step 5: Solve for x
    x = 18,898,496.12/4,985.10
  6. Step 6: Final answer
    x = 3,790.99

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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.