Home / 1,445.09-2,150.35-1,440.23

Finding the Fourth Proportional to 1,445.09, 2,150.35 and 1,440.23

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Solution

The fourth proportional to 1,445.09, 2,150.35 and 1,440.23 is: 2,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.09 : 2,150.35 = 1,440.23 : x
  2. Step 2: Convert to fraction form
    1,445.09/2,150.35 = 1,440.23/x
  3. Step 3: Cross multiply
    1,445.09x = 2,150.35 × 1,440.23
  4. Step 4: Simplify right side
    1,445.09x = 3,096,984.23
  5. Step 5: Solve for x
    x = 3,096,984.23/1,445.09
  6. Step 6: Final answer
    x = 2,143.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.