Home / 7,178.83-10,769.07-1,913.91

Finding the Fourth Proportional to 7,178.83, 10,769.07 and 1,913.91

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Solution

The fourth proportional to 7,178.83, 10,769.07 and 1,913.91 is: 2,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.83 : 10,769.07 = 1,913.91 : x
  2. Step 2: Convert to fraction form
    7,178.83/10,769.07 = 1,913.91/x
  3. Step 3: Cross multiply
    7,178.83x = 10,769.07 × 1,913.91
  4. Step 4: Simplify right side
    7,178.83x = 20,611,037.94
  5. Step 5: Solve for x
    x = 20,611,037.94/7,178.83
  6. Step 6: Final answer
    x = 2,871.09

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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.