Home / 1,394.46-2,089.48-1,133.20

Finding the Fourth Proportional to 1,394.46, 2,089.48 and 1,133.20

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Solution

The fourth proportional to 1,394.46, 2,089.48 and 1,133.20 is: 1,698.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.46 : 2,089.48 = 1,133.20 : x
  2. Step 2: Convert to fraction form
    1,394.46/2,089.48 = 1,133.20/x
  3. Step 3: Cross multiply
    1,394.46x = 2,089.48 × 1,133.20
  4. Step 4: Simplify right side
    1,394.46x = 2,367,798.74
  5. Step 5: Solve for x
    x = 2,367,798.74/1,394.46
  6. Step 6: Final answer
    x = 1,698.00

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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.