Home / 5,423.04-8,121.56-2,783.60

Finding the Fourth Proportional to 5,423.04, 8,121.56 and 2,783.60

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Solution

The fourth proportional to 5,423.04, 8,121.56 and 2,783.60 is: 4,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.04 : 8,121.56 = 2,783.60 : x
  2. Step 2: Convert to fraction form
    5,423.04/8,121.56 = 2,783.60/x
  3. Step 3: Cross multiply
    5,423.04x = 8,121.56 × 2,783.60
  4. Step 4: Simplify right side
    5,423.04x = 22,607,119.89
  5. Step 5: Solve for x
    x = 22,607,119.89/5,423.04
  6. Step 6: Final answer
    x = 4,168.72

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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.