Home / 7,141.50-9,858.69-4,755.45

Finding the Fourth Proportional to 7,141.50, 9,858.69 and 4,755.45

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Solution

The fourth proportional to 7,141.50, 9,858.69 and 4,755.45 is: 6,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.50 : 9,858.69 = 4,755.45 : x
  2. Step 2: Convert to fraction form
    7,141.50/9,858.69 = 4,755.45/x
  3. Step 3: Cross multiply
    7,141.50x = 9,858.69 × 4,755.45
  4. Step 4: Simplify right side
    7,141.50x = 46,882,507.36
  5. Step 5: Solve for x
    x = 46,882,507.36/7,141.50
  6. Step 6: Final answer
    x = 6,564.80

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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.