Home / 4,191.10-6,279.45-1,995.10

Finding the Fourth Proportional to 4,191.10, 6,279.45 and 1,995.10

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Solution

The fourth proportional to 4,191.10, 6,279.45 and 1,995.10 is: 2,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.10 : 6,279.45 = 1,995.10 : x
  2. Step 2: Convert to fraction form
    4,191.10/6,279.45 = 1,995.10/x
  3. Step 3: Cross multiply
    4,191.10x = 6,279.45 × 1,995.10
  4. Step 4: Simplify right side
    4,191.10x = 12,528,130.70
  5. Step 5: Solve for x
    x = 12,528,130.70/4,191.10
  6. Step 6: Final answer
    x = 2,989.22

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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.