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Finding the Fourth Proportional to 1,303.60, 1,953.42 and 1,264.06

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Solution

The fourth proportional to 1,303.60, 1,953.42 and 1,264.06 is: 1,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.60 : 1,953.42 = 1,264.06 : x
  2. Step 2: Convert to fraction form
    1,303.60/1,953.42 = 1,264.06/x
  3. Step 3: Cross multiply
    1,303.60x = 1,953.42 × 1,264.06
  4. Step 4: Simplify right side
    1,303.60x = 2,469,240.09
  5. Step 5: Solve for x
    x = 2,469,240.09/1,303.60
  6. Step 6: Final answer
    x = 1,894.17

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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.