Home / 1,731.24-2,389.04-945.28

Finding the Fourth Proportional to 1,731.24, 2,389.04 and 945.28

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Solution

The fourth proportional to 1,731.24, 2,389.04 and 945.28 is: 1,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.24 : 2,389.04 = 945.28 : x
  2. Step 2: Convert to fraction form
    1,731.24/2,389.04 = 945.28/x
  3. Step 3: Cross multiply
    1,731.24x = 2,389.04 × 945.28
  4. Step 4: Simplify right side
    1,731.24x = 2,258,311.73
  5. Step 5: Solve for x
    x = 2,258,311.73/1,731.24
  6. Step 6: Final answer
    x = 1,304.45

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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.