Home / 1,440.55-2,159.68-1,325.23

Finding the Fourth Proportional to 1,440.55, 2,159.68 and 1,325.23

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Solution

The fourth proportional to 1,440.55, 2,159.68 and 1,325.23 is: 1,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.55 : 2,159.68 = 1,325.23 : x
  2. Step 2: Convert to fraction form
    1,440.55/2,159.68 = 1,325.23/x
  3. Step 3: Cross multiply
    1,440.55x = 2,159.68 × 1,325.23
  4. Step 4: Simplify right side
    1,440.55x = 2,862,072.73
  5. Step 5: Solve for x
    x = 2,862,072.73/1,440.55
  6. Step 6: Final answer
    x = 1,986.79

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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.