Home / 1,692.29-2,335.34-1,029.35

Finding the Fourth Proportional to 1,692.29, 2,335.34 and 1,029.35

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Solution

The fourth proportional to 1,692.29, 2,335.34 and 1,029.35 is: 1,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.29 : 2,335.34 = 1,029.35 : x
  2. Step 2: Convert to fraction form
    1,692.29/2,335.34 = 1,029.35/x
  3. Step 3: Cross multiply
    1,692.29x = 2,335.34 × 1,029.35
  4. Step 4: Simplify right side
    1,692.29x = 2,403,890.64
  5. Step 5: Solve for x
    x = 2,403,890.64/1,692.29
  6. Step 6: Final answer
    x = 1,420.49

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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.