Home / 5,409.95-8,115.29-1,899.53

Finding the Fourth Proportional to 5,409.95, 8,115.29 and 1,899.53

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Solution

The fourth proportional to 5,409.95, 8,115.29 and 1,899.53 is: 2,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.95 : 8,115.29 = 1,899.53 : x
  2. Step 2: Convert to fraction form
    5,409.95/8,115.29 = 1,899.53/x
  3. Step 3: Cross multiply
    5,409.95x = 8,115.29 × 1,899.53
  4. Step 4: Simplify right side
    5,409.95x = 15,415,227.32
  5. Step 5: Solve for x
    x = 15,415,227.32/5,409.95
  6. Step 6: Final answer
    x = 2,849.42

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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.