Home / 1,946.16-2,905.38-1,877.81

Finding the Fourth Proportional to 1,946.16, 2,905.38 and 1,877.81

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Solution

The fourth proportional to 1,946.16, 2,905.38 and 1,877.81 is: 2,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.16 : 2,905.38 = 1,877.81 : x
  2. Step 2: Convert to fraction form
    1,946.16/2,905.38 = 1,877.81/x
  3. Step 3: Cross multiply
    1,946.16x = 2,905.38 × 1,877.81
  4. Step 4: Simplify right side
    1,946.16x = 5,455,742.23
  5. Step 5: Solve for x
    x = 5,455,742.23/1,946.16
  6. Step 6: Final answer
    x = 2,803.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.