Home / 1,528.68-2,289.78-1,234.92

Finding the Fourth Proportional to 1,528.68, 2,289.78 and 1,234.92

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Solution

The fourth proportional to 1,528.68, 2,289.78 and 1,234.92 is: 1,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.68 : 2,289.78 = 1,234.92 : x
  2. Step 2: Convert to fraction form
    1,528.68/2,289.78 = 1,234.92/x
  3. Step 3: Cross multiply
    1,528.68x = 2,289.78 × 1,234.92
  4. Step 4: Simplify right side
    1,528.68x = 2,827,695.12
  5. Step 5: Solve for x
    x = 2,827,695.12/1,528.68
  6. Step 6: Final answer
    x = 1,849.76

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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.