Home / 5,415.52-8,118.24-1,903.60

Finding the Fourth Proportional to 5,415.52, 8,118.24 and 1,903.60

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Solution

The fourth proportional to 5,415.52, 8,118.24 and 1,903.60 is: 2,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.52 : 8,118.24 = 1,903.60 : x
  2. Step 2: Convert to fraction form
    5,415.52/8,118.24 = 1,903.60/x
  3. Step 3: Cross multiply
    5,415.52x = 8,118.24 × 1,903.60
  4. Step 4: Simplify right side
    5,415.52x = 15,453,881.66
  5. Step 5: Solve for x
    x = 15,453,881.66/5,415.52
  6. Step 6: Final answer
    x = 2,853.63

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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.