Home / 1,433.70-2,149.61-692.91

Finding the Fourth Proportional to 1,433.70, 2,149.61 and 692.91

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Solution

The fourth proportional to 1,433.70, 2,149.61 and 692.91 is: 1,038.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.70 : 2,149.61 = 692.91 : x
  2. Step 2: Convert to fraction form
    1,433.70/2,149.61 = 692.91/x
  3. Step 3: Cross multiply
    1,433.70x = 2,149.61 × 692.91
  4. Step 4: Simplify right side
    1,433.70x = 1,489,482.80
  5. Step 5: Solve for x
    x = 1,489,482.80/1,433.70
  6. Step 6: Final answer
    x = 1,038.91

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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.