Home / 5,421.94-8,130.60-1,723.18

Finding the Fourth Proportional to 5,421.94, 8,130.60 and 1,723.18

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Solution

The fourth proportional to 5,421.94, 8,130.60 and 1,723.18 is: 2,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.94 : 8,130.60 = 1,723.18 : x
  2. Step 2: Convert to fraction form
    5,421.94/8,130.60 = 1,723.18/x
  3. Step 3: Cross multiply
    5,421.94x = 8,130.60 × 1,723.18
  4. Step 4: Simplify right side
    5,421.94x = 14,010,487.31
  5. Step 5: Solve for x
    x = 14,010,487.31/5,421.94
  6. Step 6: Final answer
    x = 2,584.04

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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.