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Finding the Fourth Proportional to 1,888.60, 2,605.50 and 1,363.48

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Solution

The fourth proportional to 1,888.60, 2,605.50 and 1,363.48 is: 1,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.60 : 2,605.50 = 1,363.48 : x
  2. Step 2: Convert to fraction form
    1,888.60/2,605.50 = 1,363.48/x
  3. Step 3: Cross multiply
    1,888.60x = 2,605.50 × 1,363.48
  4. Step 4: Simplify right side
    1,888.60x = 3,552,547.14
  5. Step 5: Solve for x
    x = 3,552,547.14/1,888.60
  6. Step 6: Final answer
    x = 1,881.05

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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.