Home / 2,880.53-4,321.08-1,148.75

Finding the Fourth Proportional to 2,880.53, 4,321.08 and 1,148.75

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Solution

The fourth proportional to 2,880.53, 4,321.08 and 1,148.75 is: 1,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.53 : 4,321.08 = 1,148.75 : x
  2. Step 2: Convert to fraction form
    2,880.53/4,321.08 = 1,148.75/x
  3. Step 3: Cross multiply
    2,880.53x = 4,321.08 × 1,148.75
  4. Step 4: Simplify right side
    2,880.53x = 4,963,840.65
  5. Step 5: Solve for x
    x = 4,963,840.65/2,880.53
  6. Step 6: Final answer
    x = 1,723.24

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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.