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Finding the Fourth Proportional to 2,636.18, 3,953.10 and 1,403.34

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Solution

The fourth proportional to 2,636.18, 3,953.10 and 1,403.34 is: 2,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.18 : 3,953.10 = 1,403.34 : x
  2. Step 2: Convert to fraction form
    2,636.18/3,953.10 = 1,403.34/x
  3. Step 3: Cross multiply
    2,636.18x = 3,953.10 × 1,403.34
  4. Step 4: Simplify right side
    2,636.18x = 5,547,543.35
  5. Step 5: Solve for x
    x = 5,547,543.35/2,636.18
  6. Step 6: Final answer
    x = 2,104.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.