Home / 6,107.79-8,429.01-3,455.45

Finding the Fourth Proportional to 6,107.79, 8,429.01 and 3,455.45

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Solution

The fourth proportional to 6,107.79, 8,429.01 and 3,455.45 is: 4,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.79 : 8,429.01 = 3,455.45 : x
  2. Step 2: Convert to fraction form
    6,107.79/8,429.01 = 3,455.45/x
  3. Step 3: Cross multiply
    6,107.79x = 8,429.01 × 3,455.45
  4. Step 4: Simplify right side
    6,107.79x = 29,125,980.46
  5. Step 5: Solve for x
    x = 29,125,980.46/6,107.79
  6. Step 6: Final answer
    x = 4,768.66

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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.