Home / 1,650.23-2,277.29-986.71

Finding the Fourth Proportional to 1,650.23, 2,277.29 and 986.71

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Solution

The fourth proportional to 1,650.23, 2,277.29 and 986.71 is: 1,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.23 : 2,277.29 = 986.71 : x
  2. Step 2: Convert to fraction form
    1,650.23/2,277.29 = 986.71/x
  3. Step 3: Cross multiply
    1,650.23x = 2,277.29 × 986.71
  4. Step 4: Simplify right side
    1,650.23x = 2,247,024.82
  5. Step 5: Solve for x
    x = 2,247,024.82/1,650.23
  6. Step 6: Final answer
    x = 1,361.64

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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.