Home / 2,475.04-3,711.91-831.25

Finding the Fourth Proportional to 2,475.04, 3,711.91 and 831.25

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Solution

The fourth proportional to 2,475.04, 3,711.91 and 831.25 is: 1,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.04 : 3,711.91 = 831.25 : x
  2. Step 2: Convert to fraction form
    2,475.04/3,711.91 = 831.25/x
  3. Step 3: Cross multiply
    2,475.04x = 3,711.91 × 831.25
  4. Step 4: Simplify right side
    2,475.04x = 3,085,525.19
  5. Step 5: Solve for x
    x = 3,085,525.19/2,475.04
  6. Step 6: Final answer
    x = 1,246.66

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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.