Home / 3,421.07-5,134.10-3,216.95

Finding the Fourth Proportional to 3,421.07, 5,134.10 and 3,216.95

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Solution

The fourth proportional to 3,421.07, 5,134.10 and 3,216.95 is: 4,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.07 : 5,134.10 = 3,216.95 : x
  2. Step 2: Convert to fraction form
    3,421.07/5,134.10 = 3,216.95/x
  3. Step 3: Cross multiply
    3,421.07x = 5,134.10 × 3,216.95
  4. Step 4: Simplify right side
    3,421.07x = 16,516,101.24
  5. Step 5: Solve for x
    x = 16,516,101.24/3,421.07
  6. Step 6: Final answer
    x = 4,827.77

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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.