Home / 4,280.96-6,421.56-2,091.44

Finding the Fourth Proportional to 4,280.96, 6,421.56 and 2,091.44

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Solution

The fourth proportional to 4,280.96, 6,421.56 and 2,091.44 is: 3,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.96 : 6,421.56 = 2,091.44 : x
  2. Step 2: Convert to fraction form
    4,280.96/6,421.56 = 2,091.44/x
  3. Step 3: Cross multiply
    4,280.96x = 6,421.56 × 2,091.44
  4. Step 4: Simplify right side
    4,280.96x = 13,430,307.45
  5. Step 5: Solve for x
    x = 13,430,307.45/4,280.96
  6. Step 6: Final answer
    x = 3,137.22

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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.