Home / 5,103.81-7,648.46-2,139.04

Finding the Fourth Proportional to 5,103.81, 7,648.46 and 2,139.04

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Solution

The fourth proportional to 5,103.81, 7,648.46 and 2,139.04 is: 3,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.81 : 7,648.46 = 2,139.04 : x
  2. Step 2: Convert to fraction form
    5,103.81/7,648.46 = 2,139.04/x
  3. Step 3: Cross multiply
    5,103.81x = 7,648.46 × 2,139.04
  4. Step 4: Simplify right side
    5,103.81x = 16,360,368.77
  5. Step 5: Solve for x
    x = 16,360,368.77/5,103.81
  6. Step 6: Final answer
    x = 3,205.52

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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.