Home / 2,289.67-3,160.62-1,406.68

Finding the Fourth Proportional to 2,289.67, 3,160.62 and 1,406.68

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Solution

The fourth proportional to 2,289.67, 3,160.62 and 1,406.68 is: 1,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.67 : 3,160.62 = 1,406.68 : x
  2. Step 2: Convert to fraction form
    2,289.67/3,160.62 = 1,406.68/x
  3. Step 3: Cross multiply
    2,289.67x = 3,160.62 × 1,406.68
  4. Step 4: Simplify right side
    2,289.67x = 4,445,980.94
  5. Step 5: Solve for x
    x = 4,445,980.94/2,289.67
  6. Step 6: Final answer
    x = 1,941.76

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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.