Home / 1,946.24-2,920.80-1,359.68

Finding the Fourth Proportional to 1,946.24, 2,920.80 and 1,359.68

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Solution

The fourth proportional to 1,946.24, 2,920.80 and 1,359.68 is: 2,040.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.24 : 2,920.80 = 1,359.68 : x
  2. Step 2: Convert to fraction form
    1,946.24/2,920.80 = 1,359.68/x
  3. Step 3: Cross multiply
    1,946.24x = 2,920.80 × 1,359.68
  4. Step 4: Simplify right side
    1,946.24x = 3,971,353.34
  5. Step 5: Solve for x
    x = 3,971,353.34/1,946.24
  6. Step 6: Final answer
    x = 2,040.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.