Home / 4,985.32-6,879.46-2,861.24

Finding the Fourth Proportional to 4,985.32, 6,879.46 and 2,861.24

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Solution

The fourth proportional to 4,985.32, 6,879.46 and 2,861.24 is: 3,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.32 : 6,879.46 = 2,861.24 : x
  2. Step 2: Convert to fraction form
    4,985.32/6,879.46 = 2,861.24/x
  3. Step 3: Cross multiply
    4,985.32x = 6,879.46 × 2,861.24
  4. Step 4: Simplify right side
    4,985.32x = 19,683,786.13
  5. Step 5: Solve for x
    x = 19,683,786.13/4,985.32
  6. Step 6: Final answer
    x = 3,948.35

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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.