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Finding the Fourth Proportional to 2,406.30, 3,606.06 and 1,913.55

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Solution

The fourth proportional to 2,406.30, 3,606.06 and 1,913.55 is: 2,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.30 : 3,606.06 = 1,913.55 : x
  2. Step 2: Convert to fraction form
    2,406.30/3,606.06 = 1,913.55/x
  3. Step 3: Cross multiply
    2,406.30x = 3,606.06 × 1,913.55
  4. Step 4: Simplify right side
    2,406.30x = 6,900,376.11
  5. Step 5: Solve for x
    x = 6,900,376.11/2,406.30
  6. Step 6: Final answer
    x = 2,867.63

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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.