Home / 3,897.52-5,373.47-2,886.03

Finding the Fourth Proportional to 3,897.52, 5,373.47 and 2,886.03

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Solution

The fourth proportional to 3,897.52, 5,373.47 and 2,886.03 is: 3,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.52 : 5,373.47 = 2,886.03 : x
  2. Step 2: Convert to fraction form
    3,897.52/5,373.47 = 2,886.03/x
  3. Step 3: Cross multiply
    3,897.52x = 5,373.47 × 2,886.03
  4. Step 4: Simplify right side
    3,897.52x = 15,508,002.84
  5. Step 5: Solve for x
    x = 15,508,002.84/3,897.52
  6. Step 6: Final answer
    x = 3,978.94

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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.