Home / 1,047.58-1,455.68-1,036.19

Finding the Fourth Proportional to 1,047.58, 1,455.68 and 1,036.19

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Solution

The fourth proportional to 1,047.58, 1,455.68 and 1,036.19 is: 1,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.58 : 1,455.68 = 1,036.19 : x
  2. Step 2: Convert to fraction form
    1,047.58/1,455.68 = 1,036.19/x
  3. Step 3: Cross multiply
    1,047.58x = 1,455.68 × 1,036.19
  4. Step 4: Simplify right side
    1,047.58x = 1,508,361.83
  5. Step 5: Solve for x
    x = 1,508,361.83/1,047.58
  6. Step 6: Final answer
    x = 1,439.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.