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Finding the Fourth Proportional to 1,647.63, 2,458.22 and 1,569.26

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Solution

The fourth proportional to 1,647.63, 2,458.22 and 1,569.26 is: 2,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.63 : 2,458.22 = 1,569.26 : x
  2. Step 2: Convert to fraction form
    1,647.63/2,458.22 = 1,569.26/x
  3. Step 3: Cross multiply
    1,647.63x = 2,458.22 × 1,569.26
  4. Step 4: Simplify right side
    1,647.63x = 3,857,586.32
  5. Step 5: Solve for x
    x = 3,857,586.32/1,647.63
  6. Step 6: Final answer
    x = 2,341.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.