Home / 3,985.08-5,499.51-2,307.06

Finding the Fourth Proportional to 3,985.08, 5,499.51 and 2,307.06

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Solution

The fourth proportional to 3,985.08, 5,499.51 and 2,307.06 is: 3,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.08 : 5,499.51 = 2,307.06 : x
  2. Step 2: Convert to fraction form
    3,985.08/5,499.51 = 2,307.06/x
  3. Step 3: Cross multiply
    3,985.08x = 5,499.51 × 2,307.06
  4. Step 4: Simplify right side
    3,985.08x = 12,687,699.54
  5. Step 5: Solve for x
    x = 12,687,699.54/3,985.08
  6. Step 6: Final answer
    x = 3,183.80

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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.