Home / 2,114.91-2,918.81-1,276.02

Finding the Fourth Proportional to 2,114.91, 2,918.81 and 1,276.02

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Solution

The fourth proportional to 2,114.91, 2,918.81 and 1,276.02 is: 1,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.91 : 2,918.81 = 1,276.02 : x
  2. Step 2: Convert to fraction form
    2,114.91/2,918.81 = 1,276.02/x
  3. Step 3: Cross multiply
    2,114.91x = 2,918.81 × 1,276.02
  4. Step 4: Simplify right side
    2,114.91x = 3,724,463.13
  5. Step 5: Solve for x
    x = 3,724,463.13/2,114.91
  6. Step 6: Final answer
    x = 1,761.05

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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.