Home / 7,635.79-10,538.03-4,278.56

Finding the Fourth Proportional to 7,635.79, 10,538.03 and 4,278.56

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Solution

The fourth proportional to 7,635.79, 10,538.03 and 4,278.56 is: 5,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,635.79 : 10,538.03 = 4,278.56 : x
  2. Step 2: Convert to fraction form
    7,635.79/10,538.03 = 4,278.56/x
  3. Step 3: Cross multiply
    7,635.79x = 10,538.03 × 4,278.56
  4. Step 4: Simplify right side
    7,635.79x = 45,087,551.64
  5. Step 5: Solve for x
    x = 45,087,551.64/7,635.79
  6. Step 6: Final answer
    x = 5,904.77

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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.