Home / 3,830.48-5,286.28-2,897.36

Finding the Fourth Proportional to 3,830.48, 5,286.28 and 2,897.36

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Solution

The fourth proportional to 3,830.48, 5,286.28 and 2,897.36 is: 3,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.48 : 5,286.28 = 2,897.36 : x
  2. Step 2: Convert to fraction form
    3,830.48/5,286.28 = 2,897.36/x
  3. Step 3: Cross multiply
    3,830.48x = 5,286.28 × 2,897.36
  4. Step 4: Simplify right side
    3,830.48x = 15,316,256.22
  5. Step 5: Solve for x
    x = 15,316,256.22/3,830.48
  6. Step 6: Final answer
    x = 3,998.52

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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.