Home / 5,168.04-7,131.75-2,930.13

Finding the Fourth Proportional to 5,168.04, 7,131.75 and 2,930.13

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Solution

The fourth proportional to 5,168.04, 7,131.75 and 2,930.13 is: 4,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.04 : 7,131.75 = 2,930.13 : x
  2. Step 2: Convert to fraction form
    5,168.04/7,131.75 = 2,930.13/x
  3. Step 3: Cross multiply
    5,168.04x = 7,131.75 × 2,930.13
  4. Step 4: Simplify right side
    5,168.04x = 20,896,954.63
  5. Step 5: Solve for x
    x = 20,896,954.63/5,168.04
  6. Step 6: Final answer
    x = 4,043.50

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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.