Home / 1,853.90-2,776.80-1,648.70

Finding the Fourth Proportional to 1,853.90, 2,776.80 and 1,648.70

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Solution

The fourth proportional to 1,853.90, 2,776.80 and 1,648.70 is: 2,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.90 : 2,776.80 = 1,648.70 : x
  2. Step 2: Convert to fraction form
    1,853.90/2,776.80 = 1,648.70/x
  3. Step 3: Cross multiply
    1,853.90x = 2,776.80 × 1,648.70
  4. Step 4: Simplify right side
    1,853.90x = 4,578,110.16
  5. Step 5: Solve for x
    x = 4,578,110.16/1,853.90
  6. Step 6: Final answer
    x = 2,469.45

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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.