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Finding the Fourth Proportional to 1,802.61, 2,487.60 and 1,016.64

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Solution

The fourth proportional to 1,802.61, 2,487.60 and 1,016.64 is: 1,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.61 : 2,487.60 = 1,016.64 : x
  2. Step 2: Convert to fraction form
    1,802.61/2,487.60 = 1,016.64/x
  3. Step 3: Cross multiply
    1,802.61x = 2,487.60 × 1,016.64
  4. Step 4: Simplify right side
    1,802.61x = 2,528,993.66
  5. Step 5: Solve for x
    x = 2,528,993.66/1,802.61
  6. Step 6: Final answer
    x = 1,402.96

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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.