Home / 2,100.54-2,898.47-1,261.11

Finding the Fourth Proportional to 2,100.54, 2,898.47 and 1,261.11

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Solution

The fourth proportional to 2,100.54, 2,898.47 and 1,261.11 is: 1,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.54 : 2,898.47 = 1,261.11 : x
  2. Step 2: Convert to fraction form
    2,100.54/2,898.47 = 1,261.11/x
  3. Step 3: Cross multiply
    2,100.54x = 2,898.47 × 1,261.11
  4. Step 4: Simplify right side
    2,100.54x = 3,655,292.65
  5. Step 5: Solve for x
    x = 3,655,292.65/2,100.54
  6. Step 6: Final answer
    x = 1,740.17

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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.