Home / 5,200.90-7,802.72-1,869.49

Finding the Fourth Proportional to 5,200.90, 7,802.72 and 1,869.49

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Solution

The fourth proportional to 5,200.90, 7,802.72 and 1,869.49 is: 2,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.90 : 7,802.72 = 1,869.49 : x
  2. Step 2: Convert to fraction form
    5,200.90/7,802.72 = 1,869.49/x
  3. Step 3: Cross multiply
    5,200.90x = 7,802.72 × 1,869.49
  4. Step 4: Simplify right side
    5,200.90x = 14,587,107.01
  5. Step 5: Solve for x
    x = 14,587,107.01/5,200.90
  6. Step 6: Final answer
    x = 2,804.73

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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.