Home / 2,130.66-3,191.72-1,692.63

Finding the Fourth Proportional to 2,130.66, 3,191.72 and 1,692.63

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Solution

The fourth proportional to 2,130.66, 3,191.72 and 1,692.63 is: 2,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.66 : 3,191.72 = 1,692.63 : x
  2. Step 2: Convert to fraction form
    2,130.66/3,191.72 = 1,692.63/x
  3. Step 3: Cross multiply
    2,130.66x = 3,191.72 × 1,692.63
  4. Step 4: Simplify right side
    2,130.66x = 5,402,392.56
  5. Step 5: Solve for x
    x = 5,402,392.56/2,130.66
  6. Step 6: Final answer
    x = 2,535.55

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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.