Home / 1,827.40-2,720.45-1,816.60

Finding the Fourth Proportional to 1,827.40, 2,720.45 and 1,816.60

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Solution

The fourth proportional to 1,827.40, 2,720.45 and 1,816.60 is: 2,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.40 : 2,720.45 = 1,816.60 : x
  2. Step 2: Convert to fraction form
    1,827.40/2,720.45 = 1,816.60/x
  3. Step 3: Cross multiply
    1,827.40x = 2,720.45 × 1,816.60
  4. Step 4: Simplify right side
    1,827.40x = 4,941,969.47
  5. Step 5: Solve for x
    x = 4,941,969.47/1,827.40
  6. Step 6: Final answer
    x = 2,704.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.