Home / 2,645.50-3,647.47-1,699.63

Finding the Fourth Proportional to 2,645.50, 3,647.47 and 1,699.63

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Solution

The fourth proportional to 2,645.50, 3,647.47 and 1,699.63 is: 2,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.50 : 3,647.47 = 1,699.63 : x
  2. Step 2: Convert to fraction form
    2,645.50/3,647.47 = 1,699.63/x
  3. Step 3: Cross multiply
    2,645.50x = 3,647.47 × 1,699.63
  4. Step 4: Simplify right side
    2,645.50x = 6,199,349.44
  5. Step 5: Solve for x
    x = 6,199,349.44/2,645.50
  6. Step 6: Final answer
    x = 2,343.36

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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.