Home / 2,939.07-4,055.96-1,612.80

Finding the Fourth Proportional to 2,939.07, 4,055.96 and 1,612.80

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Solution

The fourth proportional to 2,939.07, 4,055.96 and 1,612.80 is: 2,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.07 : 4,055.96 = 1,612.80 : x
  2. Step 2: Convert to fraction form
    2,939.07/4,055.96 = 1,612.80/x
  3. Step 3: Cross multiply
    2,939.07x = 4,055.96 × 1,612.80
  4. Step 4: Simplify right side
    2,939.07x = 6,541,444.22
  5. Step 5: Solve for x
    x = 6,541,444.22/2,939.07
  6. Step 6: Final answer
    x = 2,225.69

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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.