Home / 5,005.09-6,907.54-2,880.70

Finding the Fourth Proportional to 5,005.09, 6,907.54 and 2,880.70

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Solution

The fourth proportional to 5,005.09, 6,907.54 and 2,880.70 is: 3,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.09 : 6,907.54 = 2,880.70 : x
  2. Step 2: Convert to fraction form
    5,005.09/6,907.54 = 2,880.70/x
  3. Step 3: Cross multiply
    5,005.09x = 6,907.54 × 2,880.70
  4. Step 4: Simplify right side
    5,005.09x = 19,898,564.60
  5. Step 5: Solve for x
    x = 19,898,564.60/5,005.09
  6. Step 6: Final answer
    x = 3,975.66

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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.