Home / 5,518.29-7,617.93-3,840.99

Finding the Fourth Proportional to 5,518.29, 7,617.93 and 3,840.99

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Solution

The fourth proportional to 5,518.29, 7,617.93 and 3,840.99 is: 5,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.29 : 7,617.93 = 3,840.99 : x
  2. Step 2: Convert to fraction form
    5,518.29/7,617.93 = 3,840.99/x
  3. Step 3: Cross multiply
    5,518.29x = 7,617.93 × 3,840.99
  4. Step 4: Simplify right side
    5,518.29x = 29,260,392.95
  5. Step 5: Solve for x
    x = 29,260,392.95/5,518.29
  6. Step 6: Final answer
    x = 5,302.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.