Home / 2,745.65-4,111.54-1,818.40

Finding the Fourth Proportional to 2,745.65, 4,111.54 and 1,818.40

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Solution

The fourth proportional to 2,745.65, 4,111.54 and 1,818.40 is: 2,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.65 : 4,111.54 = 1,818.40 : x
  2. Step 2: Convert to fraction form
    2,745.65/4,111.54 = 1,818.40/x
  3. Step 3: Cross multiply
    2,745.65x = 4,111.54 × 1,818.40
  4. Step 4: Simplify right side
    2,745.65x = 7,476,424.34
  5. Step 5: Solve for x
    x = 7,476,424.34/2,745.65
  6. Step 6: Final answer
    x = 2,723.01

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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.