Home / 1,571.16-2,168.24-973.75

Finding the Fourth Proportional to 1,571.16, 2,168.24 and 973.75

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Solution

The fourth proportional to 1,571.16, 2,168.24 and 973.75 is: 1,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.16 : 2,168.24 = 973.75 : x
  2. Step 2: Convert to fraction form
    1,571.16/2,168.24 = 973.75/x
  3. Step 3: Cross multiply
    1,571.16x = 2,168.24 × 973.75
  4. Step 4: Simplify right side
    1,571.16x = 2,111,323.70
  5. Step 5: Solve for x
    x = 2,111,323.70/1,571.16
  6. Step 6: Final answer
    x = 1,343.80

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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.