Home / 5,378.50-7,423.01-3,020.63

Finding the Fourth Proportional to 5,378.50, 7,423.01 and 3,020.63

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Solution

The fourth proportional to 5,378.50, 7,423.01 and 3,020.63 is: 4,168.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.50 : 7,423.01 = 3,020.63 : x
  2. Step 2: Convert to fraction form
    5,378.50/7,423.01 = 3,020.63/x
  3. Step 3: Cross multiply
    5,378.50x = 7,423.01 × 3,020.63
  4. Step 4: Simplify right side
    5,378.50x = 22,422,125.81
  5. Step 5: Solve for x
    x = 22,422,125.81/5,378.50
  6. Step 6: Final answer
    x = 4,168.84

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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.