Home / 2,478.06-3,710.19-1,981.93

Finding the Fourth Proportional to 2,478.06, 3,710.19 and 1,981.93

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Solution

The fourth proportional to 2,478.06, 3,710.19 and 1,981.93 is: 2,967.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.06 : 3,710.19 = 1,981.93 : x
  2. Step 2: Convert to fraction form
    2,478.06/3,710.19 = 1,981.93/x
  3. Step 3: Cross multiply
    2,478.06x = 3,710.19 × 1,981.93
  4. Step 4: Simplify right side
    2,478.06x = 7,353,336.87
  5. Step 5: Solve for x
    x = 7,353,336.87/2,478.06
  6. Step 6: Final answer
    x = 2,967.38

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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.