Home / 2,291.18-3,161.85-1,406.93

Finding the Fourth Proportional to 2,291.18, 3,161.85 and 1,406.93

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Solution

The fourth proportional to 2,291.18, 3,161.85 and 1,406.93 is: 1,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.18 : 3,161.85 = 1,406.93 : x
  2. Step 2: Convert to fraction form
    2,291.18/3,161.85 = 1,406.93/x
  3. Step 3: Cross multiply
    2,291.18x = 3,161.85 × 1,406.93
  4. Step 4: Simplify right side
    2,291.18x = 4,448,501.62
  5. Step 5: Solve for x
    x = 4,448,501.62/2,291.18
  6. Step 6: Final answer
    x = 1,941.58

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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.