Home / 3,156.60-4,734.90-1,307.46

Finding the Fourth Proportional to 3,156.60, 4,734.90 and 1,307.46

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Solution

The fourth proportional to 3,156.60, 4,734.90 and 1,307.46 is: 1,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.60 : 4,734.90 = 1,307.46 : x
  2. Step 2: Convert to fraction form
    3,156.60/4,734.90 = 1,307.46/x
  3. Step 3: Cross multiply
    3,156.60x = 4,734.90 × 1,307.46
  4. Step 4: Simplify right side
    3,156.60x = 6,190,692.35
  5. Step 5: Solve for x
    x = 6,190,692.35/3,156.60
  6. Step 6: Final answer
    x = 1,961.19

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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.