Home / 1,541.99-2,128.07-1,276.36

Finding the Fourth Proportional to 1,541.99, 2,128.07 and 1,276.36

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Solution

The fourth proportional to 1,541.99, 2,128.07 and 1,276.36 is: 1,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.99 : 2,128.07 = 1,276.36 : x
  2. Step 2: Convert to fraction form
    1,541.99/2,128.07 = 1,276.36/x
  3. Step 3: Cross multiply
    1,541.99x = 2,128.07 × 1,276.36
  4. Step 4: Simplify right side
    1,541.99x = 2,716,166.40
  5. Step 5: Solve for x
    x = 2,716,166.40/1,541.99
  6. Step 6: Final answer
    x = 1,761.47

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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.