Home / 3,902.18-5,853.55-1,128.86

Finding the Fourth Proportional to 3,902.18, 5,853.55 and 1,128.86

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Solution

The fourth proportional to 3,902.18, 5,853.55 and 1,128.86 is: 1,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.18 : 5,853.55 = 1,128.86 : x
  2. Step 2: Convert to fraction form
    3,902.18/5,853.55 = 1,128.86/x
  3. Step 3: Cross multiply
    3,902.18x = 5,853.55 × 1,128.86
  4. Step 4: Simplify right side
    3,902.18x = 6,607,838.45
  5. Step 5: Solve for x
    x = 6,607,838.45/3,902.18
  6. Step 6: Final answer
    x = 1,693.37

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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.