Home / 1,681.24-2,319.77-982.48

Finding the Fourth Proportional to 1,681.24, 2,319.77 and 982.48

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Solution

The fourth proportional to 1,681.24, 2,319.77 and 982.48 is: 1,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.24 : 2,319.77 = 982.48 : x
  2. Step 2: Convert to fraction form
    1,681.24/2,319.77 = 982.48/x
  3. Step 3: Cross multiply
    1,681.24x = 2,319.77 × 982.48
  4. Step 4: Simplify right side
    1,681.24x = 2,279,127.63
  5. Step 5: Solve for x
    x = 2,279,127.63/1,681.24
  6. Step 6: Final answer
    x = 1,355.62

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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.