Home / 5,515.39-8,271.30-1,816.74

Finding the Fourth Proportional to 5,515.39, 8,271.30 and 1,816.74

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Solution

The fourth proportional to 5,515.39, 8,271.30 and 1,816.74 is: 2,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.39 : 8,271.30 = 1,816.74 : x
  2. Step 2: Convert to fraction form
    5,515.39/8,271.30 = 1,816.74/x
  3. Step 3: Cross multiply
    5,515.39x = 8,271.30 × 1,816.74
  4. Step 4: Simplify right side
    5,515.39x = 15,026,801.56
  5. Step 5: Solve for x
    x = 15,026,801.56/5,515.39
  6. Step 6: Final answer
    x = 2,724.52

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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.