Home / 3,618.51-5,427.76-1,277.24

Finding the Fourth Proportional to 3,618.51, 5,427.76 and 1,277.24

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Solution

The fourth proportional to 3,618.51, 5,427.76 and 1,277.24 is: 1,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.51 : 5,427.76 = 1,277.24 : x
  2. Step 2: Convert to fraction form
    3,618.51/5,427.76 = 1,277.24/x
  3. Step 3: Cross multiply
    3,618.51x = 5,427.76 × 1,277.24
  4. Step 4: Simplify right side
    3,618.51x = 6,932,525.04
  5. Step 5: Solve for x
    x = 6,932,525.04/3,618.51
  6. Step 6: Final answer
    x = 1,915.85

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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.