Home / 2,939.32-4,054.88-1,760.16

Finding the Fourth Proportional to 2,939.32, 4,054.88 and 1,760.16

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Solution

The fourth proportional to 2,939.32, 4,054.88 and 1,760.16 is: 2,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.32 : 4,054.88 = 1,760.16 : x
  2. Step 2: Convert to fraction form
    2,939.32/4,054.88 = 1,760.16/x
  3. Step 3: Cross multiply
    2,939.32x = 4,054.88 × 1,760.16
  4. Step 4: Simplify right side
    2,939.32x = 7,137,237.58
  5. Step 5: Solve for x
    x = 7,137,237.58/2,939.32
  6. Step 6: Final answer
    x = 2,428.19

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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.