Home / 6,890.20-10,335.30-4,581.70

Finding the Fourth Proportional to 6,890.20, 10,335.30 and 4,581.70

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Solution

The fourth proportional to 6,890.20, 10,335.30 and 4,581.70 is: 6,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.20 : 10,335.30 = 4,581.70 : x
  2. Step 2: Convert to fraction form
    6,890.20/10,335.30 = 4,581.70/x
  3. Step 3: Cross multiply
    6,890.20x = 10,335.30 × 4,581.70
  4. Step 4: Simplify right side
    6,890.20x = 47,353,244.01
  5. Step 5: Solve for x
    x = 47,353,244.01/6,890.20
  6. Step 6: Final answer
    x = 6,872.55

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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.