Home / 7,178.45-10,767.63-1,914.00

Finding the Fourth Proportional to 7,178.45, 10,767.63 and 1,914.00

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Solution

The fourth proportional to 7,178.45, 10,767.63 and 1,914.00 is: 2,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.45 : 10,767.63 = 1,914.00 : x
  2. Step 2: Convert to fraction form
    7,178.45/10,767.63 = 1,914.00/x
  3. Step 3: Cross multiply
    7,178.45x = 10,767.63 × 1,914.00
  4. Step 4: Simplify right side
    7,178.45x = 20,609,301.47
  5. Step 5: Solve for x
    x = 20,609,301.47/7,178.45
  6. Step 6: Final answer
    x = 2,871.00

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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.