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Finding the Fourth Proportional to 2,705.44, 4,058.16 and 653.44

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Solution

The fourth proportional to 2,705.44, 4,058.16 and 653.44 is: 980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.44 : 4,058.16 = 653.44 : x
  2. Step 2: Convert to fraction form
    2,705.44/4,058.16 = 653.44/x
  3. Step 3: Cross multiply
    2,705.44x = 4,058.16 × 653.44
  4. Step 4: Simplify right side
    2,705.44x = 2,651,753.93
  5. Step 5: Solve for x
    x = 2,651,753.93/2,705.44
  6. Step 6: Final answer
    x = 980.16

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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.