Home / 5,269.50-7,271.88-2,879.45

Finding the Fourth Proportional to 5,269.50, 7,271.88 and 2,879.45

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Solution

The fourth proportional to 5,269.50, 7,271.88 and 2,879.45 is: 3,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.50 : 7,271.88 = 2,879.45 : x
  2. Step 2: Convert to fraction form
    5,269.50/7,271.88 = 2,879.45/x
  3. Step 3: Cross multiply
    5,269.50x = 7,271.88 × 2,879.45
  4. Step 4: Simplify right side
    5,269.50x = 20,938,978.51
  5. Step 5: Solve for x
    x = 20,938,978.51/5,269.50
  6. Step 6: Final answer
    x = 3,973.62

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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.