Home / 2,455.89-3,389.36-1,512.30

Finding the Fourth Proportional to 2,455.89, 3,389.36 and 1,512.30

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Solution

The fourth proportional to 2,455.89, 3,389.36 and 1,512.30 is: 2,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.89 : 3,389.36 = 1,512.30 : x
  2. Step 2: Convert to fraction form
    2,455.89/3,389.36 = 1,512.30/x
  3. Step 3: Cross multiply
    2,455.89x = 3,389.36 × 1,512.30
  4. Step 4: Simplify right side
    2,455.89x = 5,125,721.57
  5. Step 5: Solve for x
    x = 5,125,721.57/2,455.89
  6. Step 6: Final answer
    x = 2,087.11

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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.