Home / 4,990.08-6,884.16-3,126.72

Finding the Fourth Proportional to 4,990.08, 6,884.16 and 3,126.72

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Solution

The fourth proportional to 4,990.08, 6,884.16 and 3,126.72 is: 4,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.08 : 6,884.16 = 3,126.72 : x
  2. Step 2: Convert to fraction form
    4,990.08/6,884.16 = 3,126.72/x
  3. Step 3: Cross multiply
    4,990.08x = 6,884.16 × 3,126.72
  4. Step 4: Simplify right side
    4,990.08x = 21,524,840.76
  5. Step 5: Solve for x
    x = 21,524,840.76/4,990.08
  6. Step 6: Final answer
    x = 4,313.53

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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.