Home / 2,092.80-2,889.32-1,307.91

Finding the Fourth Proportional to 2,092.80, 2,889.32 and 1,307.91

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Solution

The fourth proportional to 2,092.80, 2,889.32 and 1,307.91 is: 1,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.80 : 2,889.32 = 1,307.91 : x
  2. Step 2: Convert to fraction form
    2,092.80/2,889.32 = 1,307.91/x
  3. Step 3: Cross multiply
    2,092.80x = 2,889.32 × 1,307.91
  4. Step 4: Simplify right side
    2,092.80x = 3,778,963.98
  5. Step 5: Solve for x
    x = 3,778,963.98/2,092.80
  6. Step 6: Final answer
    x = 1,805.70

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1.5x scale

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.