Home / 4,720.51-7,081.63-1,945.64

Finding the Fourth Proportional to 4,720.51, 7,081.63 and 1,945.64

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Solution

The fourth proportional to 4,720.51, 7,081.63 and 1,945.64 is: 2,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.51 : 7,081.63 = 1,945.64 : x
  2. Step 2: Convert to fraction form
    4,720.51/7,081.63 = 1,945.64/x
  3. Step 3: Cross multiply
    4,720.51x = 7,081.63 × 1,945.64
  4. Step 4: Simplify right side
    4,720.51x = 13,778,315.43
  5. Step 5: Solve for x
    x = 13,778,315.43/4,720.51
  6. Step 6: Final answer
    x = 2,918.82

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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.