Home / 5,078.42-7,009.70-2,954.45

Finding the Fourth Proportional to 5,078.42, 7,009.70 and 2,954.45

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Solution

The fourth proportional to 5,078.42, 7,009.70 and 2,954.45 is: 4,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.42 : 7,009.70 = 2,954.45 : x
  2. Step 2: Convert to fraction form
    5,078.42/7,009.70 = 2,954.45/x
  3. Step 3: Cross multiply
    5,078.42x = 7,009.70 × 2,954.45
  4. Step 4: Simplify right side
    5,078.42x = 20,709,780.50
  5. Step 5: Solve for x
    x = 20,709,780.50/5,078.42
  6. Step 6: Final answer
    x = 4,078.00

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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.