Home / 6,408.55-9,615.45-2,897.60

Finding the Fourth Proportional to 6,408.55, 9,615.45 and 2,897.60

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Solution

The fourth proportional to 6,408.55, 9,615.45 and 2,897.60 is: 4,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.55 : 9,615.45 = 2,897.60 : x
  2. Step 2: Convert to fraction form
    6,408.55/9,615.45 = 2,897.60/x
  3. Step 3: Cross multiply
    6,408.55x = 9,615.45 × 2,897.60
  4. Step 4: Simplify right side
    6,408.55x = 27,861,727.92
  5. Step 5: Solve for x
    x = 27,861,727.92/6,408.55
  6. Step 6: Final answer
    x = 4,347.59

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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.