Home / 1,946.86-2,688.95-1,549.85

Finding the Fourth Proportional to 1,946.86, 2,688.95 and 1,549.85

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Solution

The fourth proportional to 1,946.86, 2,688.95 and 1,549.85 is: 2,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.86 : 2,688.95 = 1,549.85 : x
  2. Step 2: Convert to fraction form
    1,946.86/2,688.95 = 1,549.85/x
  3. Step 3: Cross multiply
    1,946.86x = 2,688.95 × 1,549.85
  4. Step 4: Simplify right side
    1,946.86x = 4,167,469.16
  5. Step 5: Solve for x
    x = 4,167,469.16/1,946.86
  6. Step 6: Final answer
    x = 2,140.61

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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.