Home / 6,499.47-9,749.90-2,116.36

Finding the Fourth Proportional to 6,499.47, 9,749.90 and 2,116.36

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Solution

The fourth proportional to 6,499.47, 9,749.90 and 2,116.36 is: 3,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499.47 : 9,749.90 = 2,116.36 : x
  2. Step 2: Convert to fraction form
    6,499.47/9,749.90 = 2,116.36/x
  3. Step 3: Cross multiply
    6,499.47x = 9,749.90 × 2,116.36
  4. Step 4: Simplify right side
    6,499.47x = 20,634,263.41
  5. Step 5: Solve for x
    x = 20,634,263.41/6,499.47
  6. Step 6: Final answer
    x = 3,174.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.