Home / 2,140.48-2,953.65-1,243.99

Finding the Fourth Proportional to 2,140.48, 2,953.65 and 1,243.99

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Solution

The fourth proportional to 2,140.48, 2,953.65 and 1,243.99 is: 1,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.48 : 2,953.65 = 1,243.99 : x
  2. Step 2: Convert to fraction form
    2,140.48/2,953.65 = 1,243.99/x
  3. Step 3: Cross multiply
    2,140.48x = 2,953.65 × 1,243.99
  4. Step 4: Simplify right side
    2,140.48x = 3,674,290.08
  5. Step 5: Solve for x
    x = 3,674,290.08/2,140.48
  6. Step 6: Final answer
    x = 1,716.58

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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.