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Finding the Fourth Proportional to 1,903.15, 2,626.49 and 1,064

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Solution

The fourth proportional to 1,903.15, 2,626.49 and 1,064 is: 1,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.15 : 2,626.49 = 1,064 : x
  2. Step 2: Convert to fraction form
    1,903.15/2,626.49 = 1,064/x
  3. Step 3: Cross multiply
    1,903.15x = 2,626.49 × 1,064
  4. Step 4: Simplify right side
    1,903.15x = 2,794,585.36
  5. Step 5: Solve for x
    x = 2,794,585.36/1,903.15
  6. Step 6: Final answer
    x = 1,468.40

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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.