Home / 5,478.10-8,210.40-3,723.10

Finding the Fourth Proportional to 5,478.10, 8,210.40 and 3,723.10

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Solution

The fourth proportional to 5,478.10, 8,210.40 and 3,723.10 is: 5,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.10 : 8,210.40 = 3,723.10 : x
  2. Step 2: Convert to fraction form
    5,478.10/8,210.40 = 3,723.10/x
  3. Step 3: Cross multiply
    5,478.10x = 8,210.40 × 3,723.10
  4. Step 4: Simplify right side
    5,478.10x = 30,568,140.24
  5. Step 5: Solve for x
    x = 30,568,140.24/5,478.10
  6. Step 6: Final answer
    x = 5,580.06

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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.