Home / 2,208.90-3,313.81-975.68

Finding the Fourth Proportional to 2,208.90, 3,313.81 and 975.68

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Solution

The fourth proportional to 2,208.90, 3,313.81 and 975.68 is: 1,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.90 : 3,313.81 = 975.68 : x
  2. Step 2: Convert to fraction form
    2,208.90/3,313.81 = 975.68/x
  3. Step 3: Cross multiply
    2,208.90x = 3,313.81 × 975.68
  4. Step 4: Simplify right side
    2,208.90x = 3,233,215.22
  5. Step 5: Solve for x
    x = 3,233,215.22/2,208.90
  6. Step 6: Final answer
    x = 1,463.72

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1.5x scale

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.