Home / 3,929.02-5,417.01-3,218.25

Finding the Fourth Proportional to 3,929.02, 5,417.01 and 3,218.25

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Solution

The fourth proportional to 3,929.02, 5,417.01 and 3,218.25 is: 4,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.02 : 5,417.01 = 3,218.25 : x
  2. Step 2: Convert to fraction form
    3,929.02/5,417.01 = 3,218.25/x
  3. Step 3: Cross multiply
    3,929.02x = 5,417.01 × 3,218.25
  4. Step 4: Simplify right side
    3,929.02x = 17,433,292.43
  5. Step 5: Solve for x
    x = 17,433,292.43/3,929.02
  6. Step 6: Final answer
    x = 4,437.06

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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.