Home / 3,320.71-4,980.47-1,098.86

Finding the Fourth Proportional to 3,320.71, 4,980.47 and 1,098.86

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Solution

The fourth proportional to 3,320.71, 4,980.47 and 1,098.86 is: 1,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.71 : 4,980.47 = 1,098.86 : x
  2. Step 2: Convert to fraction form
    3,320.71/4,980.47 = 1,098.86/x
  3. Step 3: Cross multiply
    3,320.71x = 4,980.47 × 1,098.86
  4. Step 4: Simplify right side
    3,320.71x = 5,472,808.87
  5. Step 5: Solve for x
    x = 5,472,808.87/3,320.71
  6. Step 6: Final answer
    x = 1,648.09

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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.