Home / 2,148.08-3,222.18-913.77

Finding the Fourth Proportional to 2,148.08, 3,222.18 and 913.77

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Solution

The fourth proportional to 2,148.08, 3,222.18 and 913.77 is: 1,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.08 : 3,222.18 = 913.77 : x
  2. Step 2: Convert to fraction form
    2,148.08/3,222.18 = 913.77/x
  3. Step 3: Cross multiply
    2,148.08x = 3,222.18 × 913.77
  4. Step 4: Simplify right side
    2,148.08x = 2,944,331.42
  5. Step 5: Solve for x
    x = 2,944,331.42/2,148.08
  6. Step 6: Final answer
    x = 1,370.68

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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.