Home / 3,313.82-4,574.50-1,987.32

Finding the Fourth Proportional to 3,313.82, 4,574.50 and 1,987.32

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Solution

The fourth proportional to 3,313.82, 4,574.50 and 1,987.32 is: 2,743.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.82 : 4,574.50 = 1,987.32 : x
  2. Step 2: Convert to fraction form
    3,313.82/4,574.50 = 1,987.32/x
  3. Step 3: Cross multiply
    3,313.82x = 4,574.50 × 1,987.32
  4. Step 4: Simplify right side
    3,313.82x = 9,090,995.34
  5. Step 5: Solve for x
    x = 9,090,995.34/3,313.82
  6. Step 6: Final answer
    x = 2,743.36

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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.