Home / 5,617.57-8,390.77-4,372.01

Finding the Fourth Proportional to 5,617.57, 8,390.77 and 4,372.01

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Solution

The fourth proportional to 5,617.57, 8,390.77 and 4,372.01 is: 6,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.57 : 8,390.77 = 4,372.01 : x
  2. Step 2: Convert to fraction form
    5,617.57/8,390.77 = 4,372.01/x
  3. Step 3: Cross multiply
    5,617.57x = 8,390.77 × 4,372.01
  4. Step 4: Simplify right side
    5,617.57x = 36,684,530.35
  5. Step 5: Solve for x
    x = 36,684,530.35/5,617.57
  6. Step 6: Final answer
    x = 6,530.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.