Home / 1,485.31-2,048.62-1,250.51

Finding the Fourth Proportional to 1,485.31, 2,048.62 and 1,250.51

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Solution

The fourth proportional to 1,485.31, 2,048.62 and 1,250.51 is: 1,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.31 : 2,048.62 = 1,250.51 : x
  2. Step 2: Convert to fraction form
    1,485.31/2,048.62 = 1,250.51/x
  3. Step 3: Cross multiply
    1,485.31x = 2,048.62 × 1,250.51
  4. Step 4: Simplify right side
    1,485.31x = 2,561,819.80
  5. Step 5: Solve for x
    x = 2,561,819.80/1,485.31
  6. Step 6: Final answer
    x = 1,724.77

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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.