Home / 2,321.23-3,203.28-1,258.99

Finding the Fourth Proportional to 2,321.23, 3,203.28 and 1,258.99

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Solution

The fourth proportional to 2,321.23, 3,203.28 and 1,258.99 is: 1,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.23 : 3,203.28 = 1,258.99 : x
  2. Step 2: Convert to fraction form
    2,321.23/3,203.28 = 1,258.99/x
  3. Step 3: Cross multiply
    2,321.23x = 3,203.28 × 1,258.99
  4. Step 4: Simplify right side
    2,321.23x = 4,032,904.84
  5. Step 5: Solve for x
    x = 4,032,904.84/2,321.23
  6. Step 6: Final answer
    x = 1,737.40

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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.