Home / 3,923.52-5,886-1,291.18

Finding the Fourth Proportional to 3,923.52, 5,886 and 1,291.18

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Solution

The fourth proportional to 3,923.52, 5,886 and 1,291.18 is: 1,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.52 : 5,886 = 1,291.18 : x
  2. Step 2: Convert to fraction form
    3,923.52/5,886 = 1,291.18/x
  3. Step 3: Cross multiply
    3,923.52x = 5,886 × 1,291.18
  4. Step 4: Simplify right side
    3,923.52x = 7,599,885.48
  5. Step 5: Solve for x
    x = 7,599,885.48/3,923.52
  6. Step 6: Final answer
    x = 1,937.01

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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.