Home / 2,427.77-3,638.32-1,040.45

Finding the Fourth Proportional to 2,427.77, 3,638.32 and 1,040.45

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Solution

The fourth proportional to 2,427.77, 3,638.32 and 1,040.45 is: 1,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.77 : 3,638.32 = 1,040.45 : x
  2. Step 2: Convert to fraction form
    2,427.77/3,638.32 = 1,040.45/x
  3. Step 3: Cross multiply
    2,427.77x = 3,638.32 × 1,040.45
  4. Step 4: Simplify right side
    2,427.77x = 3,785,469.25
  5. Step 5: Solve for x
    x = 3,785,469.25/2,427.77
  6. Step 6: Final answer
    x = 1,559.24

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1.5x scale

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.