Home / 5,423.55-8,130.81-2,305.95

Finding the Fourth Proportional to 5,423.55, 8,130.81 and 2,305.95

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Solution

The fourth proportional to 5,423.55, 8,130.81 and 2,305.95 is: 3,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.55 : 8,130.81 = 2,305.95 : x
  2. Step 2: Convert to fraction form
    5,423.55/8,130.81 = 2,305.95/x
  3. Step 3: Cross multiply
    5,423.55x = 8,130.81 × 2,305.95
  4. Step 4: Simplify right side
    5,423.55x = 18,749,241.32
  5. Step 5: Solve for x
    x = 18,749,241.32/5,423.55
  6. Step 6: Final answer
    x = 3,457.01

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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.