Home / 2,177.42-3,263.09-1,690.61

Finding the Fourth Proportional to 2,177.42, 3,263.09 and 1,690.61

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Solution

The fourth proportional to 2,177.42, 3,263.09 and 1,690.61 is: 2,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.42 : 3,263.09 = 1,690.61 : x
  2. Step 2: Convert to fraction form
    2,177.42/3,263.09 = 1,690.61/x
  3. Step 3: Cross multiply
    2,177.42x = 3,263.09 × 1,690.61
  4. Step 4: Simplify right side
    2,177.42x = 5,516,587.82
  5. Step 5: Solve for x
    x = 5,516,587.82/2,177.42
  6. Step 6: Final answer
    x = 2,533.55

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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.