Home / 1,661.15-2,291.87-962.39

Finding the Fourth Proportional to 1,661.15, 2,291.87 and 962.39

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Solution

The fourth proportional to 1,661.15, 2,291.87 and 962.39 is: 1,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.15 : 2,291.87 = 962.39 : x
  2. Step 2: Convert to fraction form
    1,661.15/2,291.87 = 962.39/x
  3. Step 3: Cross multiply
    1,661.15x = 2,291.87 × 962.39
  4. Step 4: Simplify right side
    1,661.15x = 2,205,656.50
  5. Step 5: Solve for x
    x = 2,205,656.50/1,661.15
  6. Step 6: Final answer
    x = 1,327.79

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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.