Home / 2,124.23-3,165.28-1,906.13

Finding the Fourth Proportional to 2,124.23, 3,165.28 and 1,906.13

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Solution

The fourth proportional to 2,124.23, 3,165.28 and 1,906.13 is: 2,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.23 : 3,165.28 = 1,906.13 : x
  2. Step 2: Convert to fraction form
    2,124.23/3,165.28 = 1,906.13/x
  3. Step 3: Cross multiply
    2,124.23x = 3,165.28 × 1,906.13
  4. Step 4: Simplify right side
    2,124.23x = 6,033,438.31
  5. Step 5: Solve for x
    x = 6,033,438.31/2,124.23
  6. Step 6: Final answer
    x = 2,840.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.