Home / 5,292.09-7,938.53-1,782.10

Finding the Fourth Proportional to 5,292.09, 7,938.53 and 1,782.10

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Solution

The fourth proportional to 5,292.09, 7,938.53 and 1,782.10 is: 2,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.09 : 7,938.53 = 1,782.10 : x
  2. Step 2: Convert to fraction form
    5,292.09/7,938.53 = 1,782.10/x
  3. Step 3: Cross multiply
    5,292.09x = 7,938.53 × 1,782.10
  4. Step 4: Simplify right side
    5,292.09x = 14,147,254.31
  5. Step 5: Solve for x
    x = 14,147,254.31/5,292.09
  6. Step 6: Final answer
    x = 2,673.28

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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.