Home / 1,426.15-2,140.37-605.00

Finding the Fourth Proportional to 1,426.15, 2,140.37 and 605.00

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Solution

The fourth proportional to 1,426.15, 2,140.37 and 605.00 is: 907.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.15 : 2,140.37 = 605.00 : x
  2. Step 2: Convert to fraction form
    1,426.15/2,140.37 = 605.00/x
  3. Step 3: Cross multiply
    1,426.15x = 2,140.37 × 605.00
  4. Step 4: Simplify right side
    1,426.15x = 1,294,930.71
  5. Step 5: Solve for x
    x = 1,294,930.71/1,426.15
  6. Step 6: Final answer
    x = 907.99

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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.