Home / 1,036.04-1,429.14-621.80

Finding the Fourth Proportional to 1,036.04, 1,429.14 and 621.80

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Solution

The fourth proportional to 1,036.04, 1,429.14 and 621.80 is: 857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.04 : 1,429.14 = 621.80 : x
  2. Step 2: Convert to fraction form
    1,036.04/1,429.14 = 621.80/x
  3. Step 3: Cross multiply
    1,036.04x = 1,429.14 × 621.80
  4. Step 4: Simplify right side
    1,036.04x = 888,639.25
  5. Step 5: Solve for x
    x = 888,639.25/1,036.04
  6. Step 6: Final answer
    x = 857.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.