Home / 4,990.86-6,887.70-3,309.30

Finding the Fourth Proportional to 4,990.86, 6,887.70 and 3,309.30

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Solution

The fourth proportional to 4,990.86, 6,887.70 and 3,309.30 is: 4,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.86 : 6,887.70 = 3,309.30 : x
  2. Step 2: Convert to fraction form
    4,990.86/6,887.70 = 3,309.30/x
  3. Step 3: Cross multiply
    4,990.86x = 6,887.70 × 3,309.30
  4. Step 4: Simplify right side
    4,990.86x = 22,793,465.61
  5. Step 5: Solve for x
    x = 22,793,465.61/4,990.86
  6. Step 6: Final answer
    x = 4,567.04

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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.