Home / 1,610.36-2,416.25-686.01

Finding the Fourth Proportional to 1,610.36, 2,416.25 and 686.01

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Solution

The fourth proportional to 1,610.36, 2,416.25 and 686.01 is: 1,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.36 : 2,416.25 = 686.01 : x
  2. Step 2: Convert to fraction form
    1,610.36/2,416.25 = 686.01/x
  3. Step 3: Cross multiply
    1,610.36x = 2,416.25 × 686.01
  4. Step 4: Simplify right side
    1,610.36x = 1,657,571.66
  5. Step 5: Solve for x
    x = 1,657,571.66/1,610.36
  6. Step 6: Final answer
    x = 1,029.32

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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.