Home / 7,428.42-11,146.95-2,814.66

Finding the Fourth Proportional to 7,428.42, 11,146.95 and 2,814.66

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Solution

The fourth proportional to 7,428.42, 11,146.95 and 2,814.66 is: 4,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.42 : 11,146.95 = 2,814.66 : x
  2. Step 2: Convert to fraction form
    7,428.42/11,146.95 = 2,814.66/x
  3. Step 3: Cross multiply
    7,428.42x = 11,146.95 × 2,814.66
  4. Step 4: Simplify right side
    7,428.42x = 31,374,874.29
  5. Step 5: Solve for x
    x = 31,374,874.29/7,428.42
  6. Step 6: Final answer
    x = 4,223.63

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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.