Home / 1,424.56-2,140.26-1,345.89

Finding the Fourth Proportional to 1,424.56, 2,140.26 and 1,345.89

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Solution

The fourth proportional to 1,424.56, 2,140.26 and 1,345.89 is: 2,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.56 : 2,140.26 = 1,345.89 : x
  2. Step 2: Convert to fraction form
    1,424.56/2,140.26 = 1,345.89/x
  3. Step 3: Cross multiply
    1,424.56x = 2,140.26 × 1,345.89
  4. Step 4: Simplify right side
    1,424.56x = 2,880,549.03
  5. Step 5: Solve for x
    x = 2,880,549.03/1,424.56
  6. Step 6: Final answer
    x = 2,022.07

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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.