Home / 7,174.43-10,762.27-1,980.31

Finding the Fourth Proportional to 7,174.43, 10,762.27 and 1,980.31

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Solution

The fourth proportional to 7,174.43, 10,762.27 and 1,980.31 is: 2,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.43 : 10,762.27 = 1,980.31 : x
  2. Step 2: Convert to fraction form
    7,174.43/10,762.27 = 1,980.31/x
  3. Step 3: Cross multiply
    7,174.43x = 10,762.27 × 1,980.31
  4. Step 4: Simplify right side
    7,174.43x = 21,312,567.19
  5. Step 5: Solve for x
    x = 21,312,567.19/7,174.43
  6. Step 6: Final answer
    x = 2,970.63

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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.