Home / 4,720.64-7,081.81-1,945.77

Finding the Fourth Proportional to 4,720.64, 7,081.81 and 1,945.77

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Solution

The fourth proportional to 4,720.64, 7,081.81 and 1,945.77 is: 2,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.64 : 7,081.81 = 1,945.77 : x
  2. Step 2: Convert to fraction form
    4,720.64/7,081.81 = 1,945.77/x
  3. Step 3: Cross multiply
    4,720.64x = 7,081.81 × 1,945.77
  4. Step 4: Simplify right side
    4,720.64x = 13,779,573.44
  5. Step 5: Solve for x
    x = 13,779,573.44/4,720.64
  6. Step 6: Final answer
    x = 2,919.01

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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.