Home / 1,361.02-2,041.53-495.40

Finding the Fourth Proportional to 1,361.02, 2,041.53 and 495.40

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Solution

The fourth proportional to 1,361.02, 2,041.53 and 495.40 is: 743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.02 : 2,041.53 = 495.40 : x
  2. Step 2: Convert to fraction form
    1,361.02/2,041.53 = 495.40/x
  3. Step 3: Cross multiply
    1,361.02x = 2,041.53 × 495.40
  4. Step 4: Simplify right side
    1,361.02x = 1,011,361.28
  5. Step 5: Solve for x
    x = 1,011,361.28/1,361.02
  6. Step 6: Final answer
    x = 743.09

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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.