Home / 1,805.28-2,490.39-1,556.16

Finding the Fourth Proportional to 1,805.28, 2,490.39 and 1,556.16

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Solution

The fourth proportional to 1,805.28, 2,490.39 and 1,556.16 is: 2,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.28 : 2,490.39 = 1,556.16 : x
  2. Step 2: Convert to fraction form
    1,805.28/2,490.39 = 1,556.16/x
  3. Step 3: Cross multiply
    1,805.28x = 2,490.39 × 1,556.16
  4. Step 4: Simplify right side
    1,805.28x = 3,875,445.30
  5. Step 5: Solve for x
    x = 3,875,445.30/1,805.28
  6. Step 6: Final answer
    x = 2,146.73

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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.