Home / 2,938.47-4,056.75-2,299.07

Finding the Fourth Proportional to 2,938.47, 4,056.75 and 2,299.07

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Solution

The fourth proportional to 2,938.47, 4,056.75 and 2,299.07 is: 3,174.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.47 : 4,056.75 = 2,299.07 : x
  2. Step 2: Convert to fraction form
    2,938.47/4,056.75 = 2,299.07/x
  3. Step 3: Cross multiply
    2,938.47x = 4,056.75 × 2,299.07
  4. Step 4: Simplify right side
    2,938.47x = 9,326,740.73
  5. Step 5: Solve for x
    x = 9,326,740.73/2,938.47
  6. Step 6: Final answer
    x = 3,174.02

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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.