Home / 5,580.32-8,364.16-2,289.20

Finding the Fourth Proportional to 5,580.32, 8,364.16 and 2,289.20

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Solution

The fourth proportional to 5,580.32, 8,364.16 and 2,289.20 is: 3,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.32 : 8,364.16 = 2,289.20 : x
  2. Step 2: Convert to fraction form
    5,580.32/8,364.16 = 2,289.20/x
  3. Step 3: Cross multiply
    5,580.32x = 8,364.16 × 2,289.20
  4. Step 4: Simplify right side
    5,580.32x = 19,147,235.07
  5. Step 5: Solve for x
    x = 19,147,235.07/5,580.32
  6. Step 6: Final answer
    x = 3,431.21

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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.