Home / 1,770.12-2,647.80-1,609.74

Finding the Fourth Proportional to 1,770.12, 2,647.80 and 1,609.74

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Solution

The fourth proportional to 1,770.12, 2,647.80 and 1,609.74 is: 2,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.12 : 2,647.80 = 1,609.74 : x
  2. Step 2: Convert to fraction form
    1,770.12/2,647.80 = 1,609.74/x
  3. Step 3: Cross multiply
    1,770.12x = 2,647.80 × 1,609.74
  4. Step 4: Simplify right side
    1,770.12x = 4,262,269.57
  5. Step 5: Solve for x
    x = 4,262,269.57/1,770.12
  6. Step 6: Final answer
    x = 2,407.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.