Home / 3,079.80-4,598.45-2,640.35

Finding the Fourth Proportional to 3,079.80, 4,598.45 and 2,640.35

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Solution

The fourth proportional to 3,079.80, 4,598.45 and 2,640.35 is: 3,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.80 : 4,598.45 = 2,640.35 : x
  2. Step 2: Convert to fraction form
    3,079.80/4,598.45 = 2,640.35/x
  3. Step 3: Cross multiply
    3,079.80x = 4,598.45 × 2,640.35
  4. Step 4: Simplify right side
    3,079.80x = 12,141,509.07
  5. Step 5: Solve for x
    x = 12,141,509.07/3,079.80
  6. Step 6: Final answer
    x = 3,942.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.