Home / 5,381.63-7,423.61-3,388.76

Finding the Fourth Proportional to 5,381.63, 7,423.61 and 3,388.76

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Solution

The fourth proportional to 5,381.63, 7,423.61 and 3,388.76 is: 4,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.63 : 7,423.61 = 3,388.76 : x
  2. Step 2: Convert to fraction form
    5,381.63/7,423.61 = 3,388.76/x
  3. Step 3: Cross multiply
    5,381.63x = 7,423.61 × 3,388.76
  4. Step 4: Simplify right side
    5,381.63x = 25,156,832.62
  5. Step 5: Solve for x
    x = 25,156,832.62/5,381.63
  6. Step 6: Final answer
    x = 4,674.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.