Home / 7,178.19-10,767.90-1,984.05

Finding the Fourth Proportional to 7,178.19, 10,767.90 and 1,984.05

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Solution

The fourth proportional to 7,178.19, 10,767.90 and 1,984.05 is: 2,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.19 : 10,767.90 = 1,984.05 : x
  2. Step 2: Convert to fraction form
    7,178.19/10,767.90 = 1,984.05/x
  3. Step 3: Cross multiply
    7,178.19x = 10,767.90 × 1,984.05
  4. Step 4: Simplify right side
    7,178.19x = 21,364,052.00
  5. Step 5: Solve for x
    x = 21,364,052.00/7,178.19
  6. Step 6: Final answer
    x = 2,976.24

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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.