Home / 7,164.95-9,887.55-4,021.07

Finding the Fourth Proportional to 7,164.95, 9,887.55 and 4,021.07

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Solution

The fourth proportional to 7,164.95, 9,887.55 and 4,021.07 is: 5,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.95 : 9,887.55 = 4,021.07 : x
  2. Step 2: Convert to fraction form
    7,164.95/9,887.55 = 4,021.07/x
  3. Step 3: Cross multiply
    7,164.95x = 9,887.55 × 4,021.07
  4. Step 4: Simplify right side
    7,164.95x = 39,758,530.68
  5. Step 5: Solve for x
    x = 39,758,530.68/7,164.95
  6. Step 6: Final answer
    x = 5,549.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.