Home / 3,130.74-4,692.06-1,487.79

Finding the Fourth Proportional to 3,130.74, 4,692.06 and 1,487.79

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Solution

The fourth proportional to 3,130.74, 4,692.06 and 1,487.79 is: 2,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.74 : 4,692.06 = 1,487.79 : x
  2. Step 2: Convert to fraction form
    3,130.74/4,692.06 = 1,487.79/x
  3. Step 3: Cross multiply
    3,130.74x = 4,692.06 × 1,487.79
  4. Step 4: Simplify right side
    3,130.74x = 6,980,799.95
  5. Step 5: Solve for x
    x = 6,980,799.95/3,130.74
  6. Step 6: Final answer
    x = 2,229.76

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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.