Home / 1,698.51-2,539.83-1,210.08

Finding the Fourth Proportional to 1,698.51, 2,539.83 and 1,210.08

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Solution

The fourth proportional to 1,698.51, 2,539.83 and 1,210.08 is: 1,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.51 : 2,539.83 = 1,210.08 : x
  2. Step 2: Convert to fraction form
    1,698.51/2,539.83 = 1,210.08/x
  3. Step 3: Cross multiply
    1,698.51x = 2,539.83 × 1,210.08
  4. Step 4: Simplify right side
    1,698.51x = 3,073,397.49
  5. Step 5: Solve for x
    x = 3,073,397.49/1,698.51
  6. Step 6: Final answer
    x = 1,809.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.