Home / 5,621.02-8,431.60-2,698.68

Finding the Fourth Proportional to 5,621.02, 8,431.60 and 2,698.68

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Solution

The fourth proportional to 5,621.02, 8,431.60 and 2,698.68 is: 4,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.02 : 8,431.60 = 2,698.68 : x
  2. Step 2: Convert to fraction form
    5,621.02/8,431.60 = 2,698.68/x
  3. Step 3: Cross multiply
    5,621.02x = 8,431.60 × 2,698.68
  4. Step 4: Simplify right side
    5,621.02x = 22,754,190.29
  5. Step 5: Solve for x
    x = 22,754,190.29/5,621.02
  6. Step 6: Final answer
    x = 4,048.05

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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.