Home / 2,847.93-3,930.18-1,669.11

Finding the Fourth Proportional to 2,847.93, 3,930.18 and 1,669.11

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Solution

The fourth proportional to 2,847.93, 3,930.18 and 1,669.11 is: 2,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.93 : 3,930.18 = 1,669.11 : x
  2. Step 2: Convert to fraction form
    2,847.93/3,930.18 = 1,669.11/x
  3. Step 3: Cross multiply
    2,847.93x = 3,930.18 × 1,669.11
  4. Step 4: Simplify right side
    2,847.93x = 6,559,902.74
  5. Step 5: Solve for x
    x = 6,559,902.74/2,847.93
  6. Step 6: Final answer
    x = 2,303.39

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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.