Home / 4,905.54-7,356.03-2,130.80

Finding the Fourth Proportional to 4,905.54, 7,356.03 and 2,130.80

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Solution

The fourth proportional to 4,905.54, 7,356.03 and 2,130.80 is: 3,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.54 : 7,356.03 = 2,130.80 : x
  2. Step 2: Convert to fraction form
    4,905.54/7,356.03 = 2,130.80/x
  3. Step 3: Cross multiply
    4,905.54x = 7,356.03 × 2,130.80
  4. Step 4: Simplify right side
    4,905.54x = 15,674,191.94
  5. Step 5: Solve for x
    x = 15,674,191.94/4,905.54
  6. Step 6: Final answer
    x = 3,195.20

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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.