Home / 5,518.18-7,614.40-3,280.10

Finding the Fourth Proportional to 5,518.18, 7,614.40 and 3,280.10

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Solution

The fourth proportional to 5,518.18, 7,614.40 and 3,280.10 is: 4,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.18 : 7,614.40 = 3,280.10 : x
  2. Step 2: Convert to fraction form
    5,518.18/7,614.40 = 3,280.10/x
  3. Step 3: Cross multiply
    5,518.18x = 7,614.40 × 3,280.10
  4. Step 4: Simplify right side
    5,518.18x = 24,975,993.44
  5. Step 5: Solve for x
    x = 24,975,993.44/5,518.18
  6. Step 6: Final answer
    x = 4,526.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.