Home / 2,485.66-3,429.84-1,490.74

Finding the Fourth Proportional to 2,485.66, 3,429.84 and 1,490.74

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Solution

The fourth proportional to 2,485.66, 3,429.84 and 1,490.74 is: 2,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.66 : 3,429.84 = 1,490.74 : x
  2. Step 2: Convert to fraction form
    2,485.66/3,429.84 = 1,490.74/x
  3. Step 3: Cross multiply
    2,485.66x = 3,429.84 × 1,490.74
  4. Step 4: Simplify right side
    2,485.66x = 5,112,999.68
  5. Step 5: Solve for x
    x = 5,112,999.68/2,485.66
  6. Step 6: Final answer
    x = 2,057.00

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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.