Home / 2,875.84-3,968.80-1,634.24

Finding the Fourth Proportional to 2,875.84, 3,968.80 and 1,634.24

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Solution

The fourth proportional to 2,875.84, 3,968.80 and 1,634.24 is: 2,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.84 : 3,968.80 = 1,634.24 : x
  2. Step 2: Convert to fraction form
    2,875.84/3,968.80 = 1,634.24/x
  3. Step 3: Cross multiply
    2,875.84x = 3,968.80 × 1,634.24
  4. Step 4: Simplify right side
    2,875.84x = 6,485,971.71
  5. Step 5: Solve for x
    x = 6,485,971.71/2,875.84
  6. Step 6: Final answer
    x = 2,255.33

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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.