Home / 7,110.42-10,666.20-1,916.22

Finding the Fourth Proportional to 7,110.42, 10,666.20 and 1,916.22

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Solution

The fourth proportional to 7,110.42, 10,666.20 and 1,916.22 is: 2,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.42 : 10,666.20 = 1,916.22 : x
  2. Step 2: Convert to fraction form
    7,110.42/10,666.20 = 1,916.22/x
  3. Step 3: Cross multiply
    7,110.42x = 10,666.20 × 1,916.22
  4. Step 4: Simplify right side
    7,110.42x = 20,438,785.76
  5. Step 5: Solve for x
    x = 20,438,785.76/7,110.42
  6. Step 6: Final answer
    x = 2,874.48

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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.