Home / 3,487.08-4,809-2,290.96

Finding the Fourth Proportional to 3,487.08, 4,809 and 2,290.96

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Solution

The fourth proportional to 3,487.08, 4,809 and 2,290.96 is: 3,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.08 : 4,809 = 2,290.96 : x
  2. Step 2: Convert to fraction form
    3,487.08/4,809 = 2,290.96/x
  3. Step 3: Cross multiply
    3,487.08x = 4,809 × 2,290.96
  4. Step 4: Simplify right side
    3,487.08x = 11,017,226.64
  5. Step 5: Solve for x
    x = 11,017,226.64/3,487.08
  6. Step 6: Final answer
    x = 3,159.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.