Home / 1,853.49-2,555.87-1,153.65

Finding the Fourth Proportional to 1,853.49, 2,555.87 and 1,153.65

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Solution

The fourth proportional to 1,853.49, 2,555.87 and 1,153.65 is: 1,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.49 : 2,555.87 = 1,153.65 : x
  2. Step 2: Convert to fraction form
    1,853.49/2,555.87 = 1,153.65/x
  3. Step 3: Cross multiply
    1,853.49x = 2,555.87 × 1,153.65
  4. Step 4: Simplify right side
    1,853.49x = 2,948,573.66
  5. Step 5: Solve for x
    x = 2,948,573.66/1,853.49
  6. Step 6: Final answer
    x = 1,590.82

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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.