Home / 1,883.68-2,600.78-1,440.81

Finding the Fourth Proportional to 1,883.68, 2,600.78 and 1,440.81

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Solution

The fourth proportional to 1,883.68, 2,600.78 and 1,440.81 is: 1,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.68 : 2,600.78 = 1,440.81 : x
  2. Step 2: Convert to fraction form
    1,883.68/2,600.78 = 1,440.81/x
  3. Step 3: Cross multiply
    1,883.68x = 2,600.78 × 1,440.81
  4. Step 4: Simplify right side
    1,883.68x = 3,747,222.63
  5. Step 5: Solve for x
    x = 3,747,222.63/1,883.68
  6. Step 6: Final answer
    x = 1,989.31

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1.5x scale

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.