Home / 5,585.09-8,380.26-2,812.05

Finding the Fourth Proportional to 5,585.09, 8,380.26 and 2,812.05

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Solution

The fourth proportional to 5,585.09, 8,380.26 and 2,812.05 is: 4,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.09 : 8,380.26 = 2,812.05 : x
  2. Step 2: Convert to fraction form
    5,585.09/8,380.26 = 2,812.05/x
  3. Step 3: Cross multiply
    5,585.09x = 8,380.26 × 2,812.05
  4. Step 4: Simplify right side
    5,585.09x = 23,565,710.13
  5. Step 5: Solve for x
    x = 23,565,710.13/5,585.09
  6. Step 6: Final answer
    x = 4,219.40

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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.