Home / 7,522.08-10,380.60-4,378.20

Finding the Fourth Proportional to 7,522.08, 10,380.60 and 4,378.20

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Solution

The fourth proportional to 7,522.08, 10,380.60 and 4,378.20 is: 6,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,522.08 : 10,380.60 = 4,378.20 : x
  2. Step 2: Convert to fraction form
    7,522.08/10,380.60 = 4,378.20/x
  3. Step 3: Cross multiply
    7,522.08x = 10,380.60 × 4,378.20
  4. Step 4: Simplify right side
    7,522.08x = 45,448,342.92
  5. Step 5: Solve for x
    x = 45,448,342.92/7,522.08
  6. Step 6: Final answer
    x = 6,041.99

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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.