Home / 7,322.32-10,103.70-4,178.08

Finding the Fourth Proportional to 7,322.32, 10,103.70 and 4,178.08

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Solution

The fourth proportional to 7,322.32, 10,103.70 and 4,178.08 is: 5,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.32 : 10,103.70 = 4,178.08 : x
  2. Step 2: Convert to fraction form
    7,322.32/10,103.70 = 4,178.08/x
  3. Step 3: Cross multiply
    7,322.32x = 10,103.70 × 4,178.08
  4. Step 4: Simplify right side
    7,322.32x = 42,214,066.90
  5. Step 5: Solve for x
    x = 42,214,066.90/7,322.32
  6. Step 6: Final answer
    x = 5,765.12

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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.