Home / 4,454.40-6,148.35-3,128.43

Finding the Fourth Proportional to 4,454.40, 6,148.35 and 3,128.43

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Solution

The fourth proportional to 4,454.40, 6,148.35 and 3,128.43 is: 4,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,454.40 : 6,148.35 = 3,128.43 : x
  2. Step 2: Convert to fraction form
    4,454.40/6,148.35 = 3,128.43/x
  3. Step 3: Cross multiply
    4,454.40x = 6,148.35 × 3,128.43
  4. Step 4: Simplify right side
    4,454.40x = 19,234,682.59
  5. Step 5: Solve for x
    x = 19,234,682.59/4,454.40
  6. Step 6: Final answer
    x = 4,318.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.