Home / 7,380.77-11,065.34-3,681.09

Finding the Fourth Proportional to 7,380.77, 11,065.34 and 3,681.09

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Solution

The fourth proportional to 7,380.77, 11,065.34 and 3,681.09 is: 5,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.77 : 11,065.34 = 3,681.09 : x
  2. Step 2: Convert to fraction form
    7,380.77/11,065.34 = 3,681.09/x
  3. Step 3: Cross multiply
    7,380.77x = 11,065.34 × 3,681.09
  4. Step 4: Simplify right side
    7,380.77x = 40,732,494.02
  5. Step 5: Solve for x
    x = 40,732,494.02/7,380.77
  6. Step 6: Final answer
    x = 5,518.74

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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.