Home / 5,418.13-8,127.19-1,907.32

Finding the Fourth Proportional to 5,418.13, 8,127.19 and 1,907.32

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Solution

The fourth proportional to 5,418.13, 8,127.19 and 1,907.32 is: 2,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.13 : 8,127.19 = 1,907.32 : x
  2. Step 2: Convert to fraction form
    5,418.13/8,127.19 = 1,907.32/x
  3. Step 3: Cross multiply
    5,418.13x = 8,127.19 × 1,907.32
  4. Step 4: Simplify right side
    5,418.13x = 15,501,152.03
  5. Step 5: Solve for x
    x = 15,501,152.03/5,418.13
  6. Step 6: Final answer
    x = 2,860.98

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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.