Home / 3,887.32-5,335.80-3,458.28

Finding the Fourth Proportional to 3,887.32, 5,335.80 and 3,458.28

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Solution

The fourth proportional to 3,887.32, 5,335.80 and 3,458.28 is: 4,746.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.32 : 5,335.80 = 3,458.28 : x
  2. Step 2: Convert to fraction form
    3,887.32/5,335.80 = 3,458.28/x
  3. Step 3: Cross multiply
    3,887.32x = 5,335.80 × 3,458.28
  4. Step 4: Simplify right side
    3,887.32x = 18,452,663.75
  5. Step 5: Solve for x
    x = 18,452,663.75/3,887.32
  6. Step 6: Final answer
    x = 4,746.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.