Home / 2,207.56-3,309.90-1,477.64

Finding the Fourth Proportional to 2,207.56, 3,309.90 and 1,477.64

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Solution

The fourth proportional to 2,207.56, 3,309.90 and 1,477.64 is: 2,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.56 : 3,309.90 = 1,477.64 : x
  2. Step 2: Convert to fraction form
    2,207.56/3,309.90 = 1,477.64/x
  3. Step 3: Cross multiply
    2,207.56x = 3,309.90 × 1,477.64
  4. Step 4: Simplify right side
    2,207.56x = 4,890,840.64
  5. Step 5: Solve for x
    x = 4,890,840.64/2,207.56
  6. Step 6: Final answer
    x = 2,215.50

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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.