Home / 1,364.04-2,046.13-390.29

Finding the Fourth Proportional to 1,364.04, 2,046.13 and 390.29

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Solution

The fourth proportional to 1,364.04, 2,046.13 and 390.29 is: 585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.04 : 2,046.13 = 390.29 : x
  2. Step 2: Convert to fraction form
    1,364.04/2,046.13 = 390.29/x
  3. Step 3: Cross multiply
    1,364.04x = 2,046.13 × 390.29
  4. Step 4: Simplify right side
    1,364.04x = 798,573.85
  5. Step 5: Solve for x
    x = 798,573.85/1,364.04
  6. Step 6: Final answer
    x = 585.45

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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.