Home / 1,897.34-2,619.88-1,306.85

Finding the Fourth Proportional to 1,897.34, 2,619.88 and 1,306.85

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Solution

The fourth proportional to 1,897.34, 2,619.88 and 1,306.85 is: 1,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.34 : 2,619.88 = 1,306.85 : x
  2. Step 2: Convert to fraction form
    1,897.34/2,619.88 = 1,306.85/x
  3. Step 3: Cross multiply
    1,897.34x = 2,619.88 × 1,306.85
  4. Step 4: Simplify right side
    1,897.34x = 3,423,773.81
  5. Step 5: Solve for x
    x = 3,423,773.81/1,897.34
  6. Step 6: Final answer
    x = 1,804.52

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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.