Home / 5,515.04-8,270.80-1,816.45

Finding the Fourth Proportional to 5,515.04, 8,270.80 and 1,816.45

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Solution

The fourth proportional to 5,515.04, 8,270.80 and 1,816.45 is: 2,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.04 : 8,270.80 = 1,816.45 : x
  2. Step 2: Convert to fraction form
    5,515.04/8,270.80 = 1,816.45/x
  3. Step 3: Cross multiply
    5,515.04x = 8,270.80 × 1,816.45
  4. Step 4: Simplify right side
    5,515.04x = 15,023,494.66
  5. Step 5: Solve for x
    x = 15,023,494.66/5,515.04
  6. Step 6: Final answer
    x = 2,724.10

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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.