Home / 2,928.53-4,389.21-1,816.24

Finding the Fourth Proportional to 2,928.53, 4,389.21 and 1,816.24

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Solution

The fourth proportional to 2,928.53, 4,389.21 and 1,816.24 is: 2,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.53 : 4,389.21 = 1,816.24 : x
  2. Step 2: Convert to fraction form
    2,928.53/4,389.21 = 1,816.24/x
  3. Step 3: Cross multiply
    2,928.53x = 4,389.21 × 1,816.24
  4. Step 4: Simplify right side
    2,928.53x = 7,971,831.12
  5. Step 5: Solve for x
    x = 7,971,831.12/2,928.53
  6. Step 6: Final answer
    x = 2,722.13

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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.