Home / 3,710.40-5,563.80-2,065.20

Finding the Fourth Proportional to 3,710.40, 5,563.80 and 2,065.20

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Solution

The fourth proportional to 3,710.40, 5,563.80 and 2,065.20 is: 3,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.40 : 5,563.80 = 2,065.20 : x
  2. Step 2: Convert to fraction form
    3,710.40/5,563.80 = 2,065.20/x
  3. Step 3: Cross multiply
    3,710.40x = 5,563.80 × 2,065.20
  4. Step 4: Simplify right side
    3,710.40x = 11,490,359.76
  5. Step 5: Solve for x
    x = 11,490,359.76/3,710.40
  6. Step 6: Final answer
    x = 3,096.80

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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.