Home / 5,143.08-7,715.10-1,445.34

Finding the Fourth Proportional to 5,143.08, 7,715.10 and 1,445.34

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Solution

The fourth proportional to 5,143.08, 7,715.10 and 1,445.34 is: 2,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.08 : 7,715.10 = 1,445.34 : x
  2. Step 2: Convert to fraction form
    5,143.08/7,715.10 = 1,445.34/x
  3. Step 3: Cross multiply
    5,143.08x = 7,715.10 × 1,445.34
  4. Step 4: Simplify right side
    5,143.08x = 11,150,942.63
  5. Step 5: Solve for x
    x = 11,150,942.63/5,143.08
  6. Step 6: Final answer
    x = 2,168.14

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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.