Home / 1,525.23-2,287.98-831.60

Finding the Fourth Proportional to 1,525.23, 2,287.98 and 831.60

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Solution

The fourth proportional to 1,525.23, 2,287.98 and 831.60 is: 1,247.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.23 : 2,287.98 = 831.60 : x
  2. Step 2: Convert to fraction form
    1,525.23/2,287.98 = 831.60/x
  3. Step 3: Cross multiply
    1,525.23x = 2,287.98 × 831.60
  4. Step 4: Simplify right side
    1,525.23x = 1,902,684.17
  5. Step 5: Solve for x
    x = 1,902,684.17/1,525.23
  6. Step 6: Final answer
    x = 1,247.47

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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.