Home / 6,900.95-10,353.15-2,221.40

Finding the Fourth Proportional to 6,900.95, 10,353.15 and 2,221.40

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Solution

The fourth proportional to 6,900.95, 10,353.15 and 2,221.40 is: 3,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.95 : 10,353.15 = 2,221.40 : x
  2. Step 2: Convert to fraction form
    6,900.95/10,353.15 = 2,221.40/x
  3. Step 3: Cross multiply
    6,900.95x = 10,353.15 × 2,221.40
  4. Step 4: Simplify right side
    6,900.95x = 22,998,487.41
  5. Step 5: Solve for x
    x = 22,998,487.41/6,900.95
  6. Step 6: Final answer
    x = 3,332.66

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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.