Home / 7,478.40-11,214.32-2,546.68

Finding the Fourth Proportional to 7,478.40, 11,214.32 and 2,546.68

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Solution

The fourth proportional to 7,478.40, 11,214.32 and 2,546.68 is: 3,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.40 : 11,214.32 = 2,546.68 : x
  2. Step 2: Convert to fraction form
    7,478.40/11,214.32 = 2,546.68/x
  3. Step 3: Cross multiply
    7,478.40x = 11,214.32 × 2,546.68
  4. Step 4: Simplify right side
    7,478.40x = 28,559,284.46
  5. Step 5: Solve for x
    x = 28,559,284.46/7,478.40
  6. Step 6: Final answer
    x = 3,818.90

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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.