Home / 4,645.60-6,405.12-3,385.76

Finding the Fourth Proportional to 4,645.60, 6,405.12 and 3,385.76

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Solution

The fourth proportional to 4,645.60, 6,405.12 and 3,385.76 is: 4,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.60 : 6,405.12 = 3,385.76 : x
  2. Step 2: Convert to fraction form
    4,645.60/6,405.12 = 3,385.76/x
  3. Step 3: Cross multiply
    4,645.60x = 6,405.12 × 3,385.76
  4. Step 4: Simplify right side
    4,645.60x = 21,686,199.09
  5. Step 5: Solve for x
    x = 21,686,199.09/4,645.60
  6. Step 6: Final answer
    x = 4,668.12

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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.