Home / 5,910.90-8,153.58-3,815.02

Finding the Fourth Proportional to 5,910.90, 8,153.58 and 3,815.02

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Solution

The fourth proportional to 5,910.90, 8,153.58 and 3,815.02 is: 5,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.90 : 8,153.58 = 3,815.02 : x
  2. Step 2: Convert to fraction form
    5,910.90/8,153.58 = 3,815.02/x
  3. Step 3: Cross multiply
    5,910.90x = 8,153.58 × 3,815.02
  4. Step 4: Simplify right side
    5,910.90x = 31,106,070.77
  5. Step 5: Solve for x
    x = 31,106,070.77/5,910.90
  6. Step 6: Final answer
    x = 5,262.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.