Home / 5,515.34-8,271.23-1,816.72

Finding the Fourth Proportional to 5,515.34, 8,271.23 and 1,816.72

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Solution

The fourth proportional to 5,515.34, 8,271.23 and 1,816.72 is: 2,724.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.34 : 8,271.23 = 1,816.72 : x
  2. Step 2: Convert to fraction form
    5,515.34/8,271.23 = 1,816.72/x
  3. Step 3: Cross multiply
    5,515.34x = 8,271.23 × 1,816.72
  4. Step 4: Simplify right side
    5,515.34x = 15,026,479.20
  5. Step 5: Solve for x
    x = 15,026,479.20/5,515.34
  6. Step 6: Final answer
    x = 2,724.49

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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.