Home / 2,458.12-3,688.69-997.28

Finding the Fourth Proportional to 2,458.12, 3,688.69 and 997.28

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Solution

The fourth proportional to 2,458.12, 3,688.69 and 997.28 is: 1,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.12 : 3,688.69 = 997.28 : x
  2. Step 2: Convert to fraction form
    2,458.12/3,688.69 = 997.28/x
  3. Step 3: Cross multiply
    2,458.12x = 3,688.69 × 997.28
  4. Step 4: Simplify right side
    2,458.12x = 3,678,656.76
  5. Step 5: Solve for x
    x = 3,678,656.76/2,458.12
  6. Step 6: Final answer
    x = 1,496.54

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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.