Home / 7,492.20-11,246.40-4,211.70

Finding the Fourth Proportional to 7,492.20, 11,246.40 and 4,211.70

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Solution

The fourth proportional to 7,492.20, 11,246.40 and 4,211.70 is: 6,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.20 : 11,246.40 = 4,211.70 : x
  2. Step 2: Convert to fraction form
    7,492.20/11,246.40 = 4,211.70/x
  3. Step 3: Cross multiply
    7,492.20x = 11,246.40 × 4,211.70
  4. Step 4: Simplify right side
    7,492.20x = 47,366,462.88
  5. Step 5: Solve for x
    x = 47,366,462.88/7,492.20
  6. Step 6: Final answer
    x = 6,322.10

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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.