Home / 5,371.69-8,055.60-1,860.75

Finding the Fourth Proportional to 5,371.69, 8,055.60 and 1,860.75

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Solution

The fourth proportional to 5,371.69, 8,055.60 and 1,860.75 is: 2,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.69 : 8,055.60 = 1,860.75 : x
  2. Step 2: Convert to fraction form
    5,371.69/8,055.60 = 1,860.75/x
  3. Step 3: Cross multiply
    5,371.69x = 8,055.60 × 1,860.75
  4. Step 4: Simplify right side
    5,371.69x = 14,989,408.12
  5. Step 5: Solve for x
    x = 14,989,408.12/5,371.69
  6. Step 6: Final answer
    x = 2,790.45

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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.