Home / 3,929.10-5,421.06-2,437.08

Finding the Fourth Proportional to 3,929.10, 5,421.06 and 2,437.08

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Solution

The fourth proportional to 3,929.10, 5,421.06 and 2,437.08 is: 3,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.10 : 5,421.06 = 2,437.08 : x
  2. Step 2: Convert to fraction form
    3,929.10/5,421.06 = 2,437.08/x
  3. Step 3: Cross multiply
    3,929.10x = 5,421.06 × 2,437.08
  4. Step 4: Simplify right side
    3,929.10x = 13,211,556.90
  5. Step 5: Solve for x
    x = 13,211,556.90/3,929.10
  6. Step 6: Final answer
    x = 3,362.49

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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.