Home / 5,686.71-8,528.98-1,938.66

Finding the Fourth Proportional to 5,686.71, 8,528.98 and 1,938.66

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Solution

The fourth proportional to 5,686.71, 8,528.98 and 1,938.66 is: 2,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.71 : 8,528.98 = 1,938.66 : x
  2. Step 2: Convert to fraction form
    5,686.71/8,528.98 = 1,938.66/x
  3. Step 3: Cross multiply
    5,686.71x = 8,528.98 × 1,938.66
  4. Step 4: Simplify right side
    5,686.71x = 16,534,792.37
  5. Step 5: Solve for x
    x = 16,534,792.37/5,686.71
  6. Step 6: Final answer
    x = 2,907.62

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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.