Home / 4,280.55-6,421.59-1,469.28

Finding the Fourth Proportional to 4,280.55, 6,421.59 and 1,469.28

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Solution

The fourth proportional to 4,280.55, 6,421.59 and 1,469.28 is: 2,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.55 : 6,421.59 = 1,469.28 : x
  2. Step 2: Convert to fraction form
    4,280.55/6,421.59 = 1,469.28/x
  3. Step 3: Cross multiply
    4,280.55x = 6,421.59 × 1,469.28
  4. Step 4: Simplify right side
    4,280.55x = 9,435,113.76
  5. Step 5: Solve for x
    x = 9,435,113.76/4,280.55
  6. Step 6: Final answer
    x = 2,204.18

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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.