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Finding the Fourth Proportional to 5,618.96, 8,430.07 and 1,723.94

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Solution

The fourth proportional to 5,618.96, 8,430.07 and 1,723.94 is: 2,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.96 : 8,430.07 = 1,723.94 : x
  2. Step 2: Convert to fraction form
    5,618.96/8,430.07 = 1,723.94/x
  3. Step 3: Cross multiply
    5,618.96x = 8,430.07 × 1,723.94
  4. Step 4: Simplify right side
    5,618.96x = 14,532,934.88
  5. Step 5: Solve for x
    x = 14,532,934.88/5,618.96
  6. Step 6: Final answer
    x = 2,586.41

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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.