Home / 1,788.34-2,677.29-1,328.16

Finding the Fourth Proportional to 1,788.34, 2,677.29 and 1,328.16

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Solution

The fourth proportional to 1,788.34, 2,677.29 and 1,328.16 is: 1,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.34 : 2,677.29 = 1,328.16 : x
  2. Step 2: Convert to fraction form
    1,788.34/2,677.29 = 1,328.16/x
  3. Step 3: Cross multiply
    1,788.34x = 2,677.29 × 1,328.16
  4. Step 4: Simplify right side
    1,788.34x = 3,555,869.49
  5. Step 5: Solve for x
    x = 3,555,869.49/1,788.34
  6. Step 6: Final answer
    x = 1,988.37

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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.