Home / 2,108.51-2,904.10-1,828.76

Finding the Fourth Proportional to 2,108.51, 2,904.10 and 1,828.76

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Solution

The fourth proportional to 2,108.51, 2,904.10 and 1,828.76 is: 2,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.51 : 2,904.10 = 1,828.76 : x
  2. Step 2: Convert to fraction form
    2,108.51/2,904.10 = 1,828.76/x
  3. Step 3: Cross multiply
    2,108.51x = 2,904.10 × 1,828.76
  4. Step 4: Simplify right side
    2,108.51x = 5,310,904.60
  5. Step 5: Solve for x
    x = 5,310,904.60/2,108.51
  6. Step 6: Final answer
    x = 2,518.79

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1.5x scale

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.