Home / 1,698.70-2,541.86-1,403.46

Finding the Fourth Proportional to 1,698.70, 2,541.86 and 1,403.46

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Solution

The fourth proportional to 1,698.70, 2,541.86 and 1,403.46 is: 2,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.70 : 2,541.86 = 1,403.46 : x
  2. Step 2: Convert to fraction form
    1,698.70/2,541.86 = 1,403.46/x
  3. Step 3: Cross multiply
    1,698.70x = 2,541.86 × 1,403.46
  4. Step 4: Simplify right side
    1,698.70x = 3,567,398.84
  5. Step 5: Solve for x
    x = 3,567,398.84/1,698.70
  6. Step 6: Final answer
    x = 2,100.08

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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.