Home / 5,124.92-7,686.62-1,426.77

Finding the Fourth Proportional to 5,124.92, 7,686.62 and 1,426.77

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Solution

The fourth proportional to 5,124.92, 7,686.62 and 1,426.77 is: 2,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.92 : 7,686.62 = 1,426.77 : x
  2. Step 2: Convert to fraction form
    5,124.92/7,686.62 = 1,426.77/x
  3. Step 3: Cross multiply
    5,124.92x = 7,686.62 × 1,426.77
  4. Step 4: Simplify right side
    5,124.92x = 10,967,031.68
  5. Step 5: Solve for x
    x = 10,967,031.68/5,124.92
  6. Step 6: Final answer
    x = 2,139.94

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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.