Home / 5,128.60-7,077.52-3,032.68

Finding the Fourth Proportional to 5,128.60, 7,077.52 and 3,032.68

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Solution

The fourth proportional to 5,128.60, 7,077.52 and 3,032.68 is: 4,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.60 : 7,077.52 = 3,032.68 : x
  2. Step 2: Convert to fraction form
    5,128.60/7,077.52 = 3,032.68/x
  3. Step 3: Cross multiply
    5,128.60x = 7,077.52 × 3,032.68
  4. Step 4: Simplify right side
    5,128.60x = 21,463,853.35
  5. Step 5: Solve for x
    x = 21,463,853.35/5,128.60
  6. Step 6: Final answer
    x = 4,185.13

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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.