Home / 5,137.40-7,714.80-4,874.36

Finding the Fourth Proportional to 5,137.40, 7,714.80 and 4,874.36

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Solution

The fourth proportional to 5,137.40, 7,714.80 and 4,874.36 is: 7,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.40 : 7,714.80 = 4,874.36 : x
  2. Step 2: Convert to fraction form
    5,137.40/7,714.80 = 4,874.36/x
  3. Step 3: Cross multiply
    5,137.40x = 7,714.80 × 4,874.36
  4. Step 4: Simplify right side
    5,137.40x = 37,604,712.53
  5. Step 5: Solve for x
    x = 37,604,712.53/5,137.40
  6. Step 6: Final answer
    x = 7,319.79

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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.