Home / 1,440.64-1,975.34-1,300.24

Finding the Fourth Proportional to 1,440.64, 1,975.34 and 1,300.24

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Solution

The fourth proportional to 1,440.64, 1,975.34 and 1,300.24 is: 1,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.64 : 1,975.34 = 1,300.24 : x
  2. Step 2: Convert to fraction form
    1,440.64/1,975.34 = 1,300.24/x
  3. Step 3: Cross multiply
    1,440.64x = 1,975.34 × 1,300.24
  4. Step 4: Simplify right side
    1,440.64x = 2,568,416.08
  5. Step 5: Solve for x
    x = 2,568,416.08/1,440.64
  6. Step 6: Final answer
    x = 1,782.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.