Home / 5,621.06-8,420.29-2,801.39

Finding the Fourth Proportional to 5,621.06, 8,420.29 and 2,801.39

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Solution

The fourth proportional to 5,621.06, 8,420.29 and 2,801.39 is: 4,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.06 : 8,420.29 = 2,801.39 : x
  2. Step 2: Convert to fraction form
    5,621.06/8,420.29 = 2,801.39/x
  3. Step 3: Cross multiply
    5,621.06x = 8,420.29 × 2,801.39
  4. Step 4: Simplify right side
    5,621.06x = 23,588,516.20
  5. Step 5: Solve for x
    x = 23,588,516.20/5,621.06
  6. Step 6: Final answer
    x = 4,196.46

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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.