Home / 4,953.12-7,428.96-1,665.12

Finding the Fourth Proportional to 4,953.12, 7,428.96 and 1,665.12

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Solution

The fourth proportional to 4,953.12, 7,428.96 and 1,665.12 is: 2,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.12 : 7,428.96 = 1,665.12 : x
  2. Step 2: Convert to fraction form
    4,953.12/7,428.96 = 1,665.12/x
  3. Step 3: Cross multiply
    4,953.12x = 7,428.96 × 1,665.12
  4. Step 4: Simplify right side
    4,953.12x = 12,370,109.88
  5. Step 5: Solve for x
    x = 12,370,109.88/4,953.12
  6. Step 6: Final answer
    x = 2,497.44

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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.