Home / 5,617.99-8,428.30-1,669.28

Finding the Fourth Proportional to 5,617.99, 8,428.30 and 1,669.28

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Solution

The fourth proportional to 5,617.99, 8,428.30 and 1,669.28 is: 2,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.99 : 8,428.30 = 1,669.28 : x
  2. Step 2: Convert to fraction form
    5,617.99/8,428.30 = 1,669.28/x
  3. Step 3: Cross multiply
    5,617.99x = 8,428.30 × 1,669.28
  4. Step 4: Simplify right side
    5,617.99x = 14,069,173.48
  5. Step 5: Solve for x
    x = 14,069,173.48/5,617.99
  6. Step 6: Final answer
    x = 2,504.31

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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.