Home / 7,139.48-10,694.28-4,529.48

Finding the Fourth Proportional to 7,139.48, 10,694.28 and 4,529.48

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Solution

The fourth proportional to 7,139.48, 10,694.28 and 4,529.48 is: 6,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.48 : 10,694.28 = 4,529.48 : x
  2. Step 2: Convert to fraction form
    7,139.48/10,694.28 = 4,529.48/x
  3. Step 3: Cross multiply
    7,139.48x = 10,694.28 × 4,529.48
  4. Step 4: Simplify right side
    7,139.48x = 48,439,527.37
  5. Step 5: Solve for x
    x = 48,439,527.37/7,139.48
  6. Step 6: Final answer
    x = 6,784.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.