Home / 3,135.60-4,703.40-3,103.20

Finding the Fourth Proportional to 3,135.60, 4,703.40 and 3,103.20

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Solution

The fourth proportional to 3,135.60, 4,703.40 and 3,103.20 is: 4,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.60 : 4,703.40 = 3,103.20 : x
  2. Step 2: Convert to fraction form
    3,135.60/4,703.40 = 3,103.20/x
  3. Step 3: Cross multiply
    3,135.60x = 4,703.40 × 3,103.20
  4. Step 4: Simplify right side
    3,135.60x = 14,595,590.88
  5. Step 5: Solve for x
    x = 14,595,590.88/3,135.60
  6. Step 6: Final answer
    x = 4,654.80

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1.5x scale

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.