Home / 6,128.28-9,177.62-3,487.79

Finding the Fourth Proportional to 6,128.28, 9,177.62 and 3,487.79

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Solution

The fourth proportional to 6,128.28, 9,177.62 and 3,487.79 is: 5,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.28 : 9,177.62 = 3,487.79 : x
  2. Step 2: Convert to fraction form
    6,128.28/9,177.62 = 3,487.79/x
  3. Step 3: Cross multiply
    6,128.28x = 9,177.62 × 3,487.79
  4. Step 4: Simplify right side
    6,128.28x = 32,009,547.93
  5. Step 5: Solve for x
    x = 32,009,547.93/6,128.28
  6. Step 6: Final answer
    x = 5,223.25

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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.