Home / 2,940.07-4,407.03-2,158.91

Finding the Fourth Proportional to 2,940.07, 4,407.03 and 2,158.91

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Solution

The fourth proportional to 2,940.07, 4,407.03 and 2,158.91 is: 3,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.07 : 4,407.03 = 2,158.91 : x
  2. Step 2: Convert to fraction form
    2,940.07/4,407.03 = 2,158.91/x
  3. Step 3: Cross multiply
    2,940.07x = 4,407.03 × 2,158.91
  4. Step 4: Simplify right side
    2,940.07x = 9,514,381.14
  5. Step 5: Solve for x
    x = 9,514,381.14/2,940.07
  6. Step 6: Final answer
    x = 3,236.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.