Home / 1,342.12-2,012.95-368.01

Finding the Fourth Proportional to 1,342.12, 2,012.95 and 368.01

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Solution

The fourth proportional to 1,342.12, 2,012.95 and 368.01 is: 551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.12 : 2,012.95 = 368.01 : x
  2. Step 2: Convert to fraction form
    1,342.12/2,012.95 = 368.01/x
  3. Step 3: Cross multiply
    1,342.12x = 2,012.95 × 368.01
  4. Step 4: Simplify right side
    1,342.12x = 740,785.73
  5. Step 5: Solve for x
    x = 740,785.73/1,342.12
  6. Step 6: Final answer
    x = 551.95

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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.