Home / 3,931.56-5,897.40-1,009.80

Finding the Fourth Proportional to 3,931.56, 5,897.40 and 1,009.80

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Solution

The fourth proportional to 3,931.56, 5,897.40 and 1,009.80 is: 1,514.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.56 : 5,897.40 = 1,009.80 : x
  2. Step 2: Convert to fraction form
    3,931.56/5,897.40 = 1,009.80/x
  3. Step 3: Cross multiply
    3,931.56x = 5,897.40 × 1,009.80
  4. Step 4: Simplify right side
    3,931.56x = 5,955,194.52
  5. Step 5: Solve for x
    x = 5,955,194.52/3,931.56
  6. Step 6: Final answer
    x = 1,514.72

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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.