Home / 1,946.16-2,685.40-1,118

Finding the Fourth Proportional to 1,946.16, 2,685.40 and 1,118

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Solution

The fourth proportional to 1,946.16, 2,685.40 and 1,118 is: 1,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.16 : 2,685.40 = 1,118 : x
  2. Step 2: Convert to fraction form
    1,946.16/2,685.40 = 1,118/x
  3. Step 3: Cross multiply
    1,946.16x = 2,685.40 × 1,118
  4. Step 4: Simplify right side
    1,946.16x = 3,002,277.20
  5. Step 5: Solve for x
    x = 3,002,277.20/1,946.16
  6. Step 6: Final answer
    x = 1,542.67

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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.