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Finding the Fourth Proportional to 1,606.95, 2,410.78 and 913.95

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Solution

The fourth proportional to 1,606.95, 2,410.78 and 913.95 is: 1,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.95 : 2,410.78 = 913.95 : x
  2. Step 2: Convert to fraction form
    1,606.95/2,410.78 = 913.95/x
  3. Step 3: Cross multiply
    1,606.95x = 2,410.78 × 913.95
  4. Step 4: Simplify right side
    1,606.95x = 2,203,328.64
  5. Step 5: Solve for x
    x = 2,203,328.64/1,606.95
  6. Step 6: Final answer
    x = 1,371.12

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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.