Home / 2,619.08-3,614.36-1,440.16

Finding the Fourth Proportional to 2,619.08, 3,614.36 and 1,440.16

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Solution

The fourth proportional to 2,619.08, 3,614.36 and 1,440.16 is: 1,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.08 : 3,614.36 = 1,440.16 : x
  2. Step 2: Convert to fraction form
    2,619.08/3,614.36 = 1,440.16/x
  3. Step 3: Cross multiply
    2,619.08x = 3,614.36 × 1,440.16
  4. Step 4: Simplify right side
    2,619.08x = 5,205,256.70
  5. Step 5: Solve for x
    x = 5,205,256.70/2,619.08
  6. Step 6: Final answer
    x = 1,987.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.