Home / 7,385.10-10,191.40-4,027.86

Finding the Fourth Proportional to 7,385.10, 10,191.40 and 4,027.86

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Solution

The fourth proportional to 7,385.10, 10,191.40 and 4,027.86 is: 5,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.10 : 10,191.40 = 4,027.86 : x
  2. Step 2: Convert to fraction form
    7,385.10/10,191.40 = 4,027.86/x
  3. Step 3: Cross multiply
    7,385.10x = 10,191.40 × 4,027.86
  4. Step 4: Simplify right side
    7,385.10x = 41,049,532.40
  5. Step 5: Solve for x
    x = 41,049,532.40/7,385.10
  6. Step 6: Final answer
    x = 5,558.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.