Home / 5,385.34-8,070.50-2,611.28

Finding the Fourth Proportional to 5,385.34, 8,070.50 and 2,611.28

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Solution

The fourth proportional to 5,385.34, 8,070.50 and 2,611.28 is: 3,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.34 : 8,070.50 = 2,611.28 : x
  2. Step 2: Convert to fraction form
    5,385.34/8,070.50 = 2,611.28/x
  3. Step 3: Cross multiply
    5,385.34x = 8,070.50 × 2,611.28
  4. Step 4: Simplify right side
    5,385.34x = 21,074,335.24
  5. Step 5: Solve for x
    x = 21,074,335.24/5,385.34
  6. Step 6: Final answer
    x = 3,913.28

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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.