Home / 5,431.44-8,140.92-2,306.82

Finding the Fourth Proportional to 5,431.44, 8,140.92 and 2,306.82

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Solution

The fourth proportional to 5,431.44, 8,140.92 and 2,306.82 is: 3,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.44 : 8,140.92 = 2,306.82 : x
  2. Step 2: Convert to fraction form
    5,431.44/8,140.92 = 2,306.82/x
  3. Step 3: Cross multiply
    5,431.44x = 8,140.92 × 2,306.82
  4. Step 4: Simplify right side
    5,431.44x = 18,779,637.07
  5. Step 5: Solve for x
    x = 18,779,637.07/5,431.44
  6. Step 6: Final answer
    x = 3,457.58

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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.