Home / 7,064.83-9,749.19-3,920.95

Finding the Fourth Proportional to 7,064.83, 9,749.19 and 3,920.95

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Solution

The fourth proportional to 7,064.83, 9,749.19 and 3,920.95 is: 5,410.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,064.83 : 9,749.19 = 3,920.95 : x
  2. Step 2: Convert to fraction form
    7,064.83/9,749.19 = 3,920.95/x
  3. Step 3: Cross multiply
    7,064.83x = 9,749.19 × 3,920.95
  4. Step 4: Simplify right side
    7,064.83x = 38,226,086.53
  5. Step 5: Solve for x
    x = 38,226,086.53/7,064.83
  6. Step 6: Final answer
    x = 5,410.76

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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.