Home / 2,685.36-4,031.01-1,591.86

Finding the Fourth Proportional to 2,685.36, 4,031.01 and 1,591.86

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Solution

The fourth proportional to 2,685.36, 4,031.01 and 1,591.86 is: 2,389.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.36 : 4,031.01 = 1,591.86 : x
  2. Step 2: Convert to fraction form
    2,685.36/4,031.01 = 1,591.86/x
  3. Step 3: Cross multiply
    2,685.36x = 4,031.01 × 1,591.86
  4. Step 4: Simplify right side
    2,685.36x = 6,416,803.58
  5. Step 5: Solve for x
    x = 6,416,803.58/2,685.36
  6. Step 6: Final answer
    x = 2,389.55

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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.