Home / 1,897.17-2,618.96-1,426.96

Finding the Fourth Proportional to 1,897.17, 2,618.96 and 1,426.96

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Solution

The fourth proportional to 1,897.17, 2,618.96 and 1,426.96 is: 1,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.17 : 2,618.96 = 1,426.96 : x
  2. Step 2: Convert to fraction form
    1,897.17/2,618.96 = 1,426.96/x
  3. Step 3: Cross multiply
    1,897.17x = 2,618.96 × 1,426.96
  4. Step 4: Simplify right side
    1,897.17x = 3,737,151.16
  5. Step 5: Solve for x
    x = 3,737,151.16/1,897.17
  6. Step 6: Final answer
    x = 1,969.86

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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.