Home / 2,461.80-3,692.70-1,291.35

Finding the Fourth Proportional to 2,461.80, 3,692.70 and 1,291.35

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Solution

The fourth proportional to 2,461.80, 3,692.70 and 1,291.35 is: 1,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.80 : 3,692.70 = 1,291.35 : x
  2. Step 2: Convert to fraction form
    2,461.80/3,692.70 = 1,291.35/x
  3. Step 3: Cross multiply
    2,461.80x = 3,692.70 × 1,291.35
  4. Step 4: Simplify right side
    2,461.80x = 4,768,568.15
  5. Step 5: Solve for x
    x = 4,768,568.15/2,461.80
  6. Step 6: Final answer
    x = 1,937.03

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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.