Home / 1,553.46-2,143.50-1,258.22

Finding the Fourth Proportional to 1,553.46, 2,143.50 and 1,258.22

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Solution

The fourth proportional to 1,553.46, 2,143.50 and 1,258.22 is: 1,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.46 : 2,143.50 = 1,258.22 : x
  2. Step 2: Convert to fraction form
    1,553.46/2,143.50 = 1,258.22/x
  3. Step 3: Cross multiply
    1,553.46x = 2,143.50 × 1,258.22
  4. Step 4: Simplify right side
    1,553.46x = 2,696,994.57
  5. Step 5: Solve for x
    x = 2,696,994.57/1,553.46
  6. Step 6: Final answer
    x = 1,736.12

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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.