Home / 5,420.48-8,129.44-2,298.76

Finding the Fourth Proportional to 5,420.48, 8,129.44 and 2,298.76

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Solution

The fourth proportional to 5,420.48, 8,129.44 and 2,298.76 is: 3,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.48 : 8,129.44 = 2,298.76 : x
  2. Step 2: Convert to fraction form
    5,420.48/8,129.44 = 2,298.76/x
  3. Step 3: Cross multiply
    5,420.48x = 8,129.44 × 2,298.76
  4. Step 4: Simplify right side
    5,420.48x = 18,687,631.49
  5. Step 5: Solve for x
    x = 18,687,631.49/5,420.48
  6. Step 6: Final answer
    x = 3,447.60

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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.