Home / 2,431.22-3,356.61-1,929.13

Finding the Fourth Proportional to 2,431.22, 3,356.61 and 1,929.13

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Solution

The fourth proportional to 2,431.22, 3,356.61 and 1,929.13 is: 2,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.22 : 3,356.61 = 1,929.13 : x
  2. Step 2: Convert to fraction form
    2,431.22/3,356.61 = 1,929.13/x
  3. Step 3: Cross multiply
    2,431.22x = 3,356.61 × 1,929.13
  4. Step 4: Simplify right side
    2,431.22x = 6,475,328.66
  5. Step 5: Solve for x
    x = 6,475,328.66/2,431.22
  6. Step 6: Final answer
    x = 2,663.40

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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.