Home / 5,475.86-8,213.61-1,580.66

Finding the Fourth Proportional to 5,475.86, 8,213.61 and 1,580.66

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Solution

The fourth proportional to 5,475.86, 8,213.61 and 1,580.66 is: 2,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.86 : 8,213.61 = 1,580.66 : x
  2. Step 2: Convert to fraction form
    5,475.86/8,213.61 = 1,580.66/x
  3. Step 3: Cross multiply
    5,475.86x = 8,213.61 × 1,580.66
  4. Step 4: Simplify right side
    5,475.86x = 12,982,924.78
  5. Step 5: Solve for x
    x = 12,982,924.78/5,475.86
  6. Step 6: Final answer
    x = 2,370.94

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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.