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Finding the Fourth Proportional to 2,705.60, 4,060.80 and 1,840.52

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Solution

The fourth proportional to 2,705.60, 4,060.80 and 1,840.52 is: 2,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.60 : 4,060.80 = 1,840.52 : x
  2. Step 2: Convert to fraction form
    2,705.60/4,060.80 = 1,840.52/x
  3. Step 3: Cross multiply
    2,705.60x = 4,060.80 × 1,840.52
  4. Step 4: Simplify right side
    2,705.60x = 7,473,983.62
  5. Step 5: Solve for x
    x = 7,473,983.62/2,705.60
  6. Step 6: Final answer
    x = 2,762.41

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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.