Home / 1,897.23-2,619.21-1,310.92

Finding the Fourth Proportional to 1,897.23, 2,619.21 and 1,310.92

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Solution

The fourth proportional to 1,897.23, 2,619.21 and 1,310.92 is: 1,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.23 : 2,619.21 = 1,310.92 : x
  2. Step 2: Convert to fraction form
    1,897.23/2,619.21 = 1,310.92/x
  3. Step 3: Cross multiply
    1,897.23x = 2,619.21 × 1,310.92
  4. Step 4: Simplify right side
    1,897.23x = 3,433,574.77
  5. Step 5: Solve for x
    x = 3,433,574.77/1,897.23
  6. Step 6: Final answer
    x = 1,809.78

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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.