Home / 1,897.16-2,619.27-1,225.29

Finding the Fourth Proportional to 1,897.16, 2,619.27 and 1,225.29

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Solution

The fourth proportional to 1,897.16, 2,619.27 and 1,225.29 is: 1,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.16 : 2,619.27 = 1,225.29 : x
  2. Step 2: Convert to fraction form
    1,897.16/2,619.27 = 1,225.29/x
  3. Step 3: Cross multiply
    1,897.16x = 2,619.27 × 1,225.29
  4. Step 4: Simplify right side
    1,897.16x = 3,209,375.16
  5. Step 5: Solve for x
    x = 3,209,375.16/1,897.16
  6. Step 6: Final answer
    x = 1,691.68

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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.