Home / 1,897.46-2,621.08-1,605.86

Finding the Fourth Proportional to 1,897.46, 2,621.08 and 1,605.86

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Solution

The fourth proportional to 1,897.46, 2,621.08 and 1,605.86 is: 2,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.46 : 2,621.08 = 1,605.86 : x
  2. Step 2: Convert to fraction form
    1,897.46/2,621.08 = 1,605.86/x
  3. Step 3: Cross multiply
    1,897.46x = 2,621.08 × 1,605.86
  4. Step 4: Simplify right side
    1,897.46x = 4,209,087.53
  5. Step 5: Solve for x
    x = 4,209,087.53/1,897.46
  6. Step 6: Final answer
    x = 2,218.27

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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.