Home / 5,516.28-8,271.95-1,620.99

Finding the Fourth Proportional to 5,516.28, 8,271.95 and 1,620.99

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Solution

The fourth proportional to 5,516.28, 8,271.95 and 1,620.99 is: 2,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.28 : 8,271.95 = 1,620.99 : x
  2. Step 2: Convert to fraction form
    5,516.28/8,271.95 = 1,620.99/x
  3. Step 3: Cross multiply
    5,516.28x = 8,271.95 × 1,620.99
  4. Step 4: Simplify right side
    5,516.28x = 13,408,740.13
  5. Step 5: Solve for x
    x = 13,408,740.13/5,516.28
  6. Step 6: Final answer
    x = 2,430.76

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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.