Home / 3,120.23-4,303.99-1,860.48

Finding the Fourth Proportional to 3,120.23, 4,303.99 and 1,860.48

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Solution

The fourth proportional to 3,120.23, 4,303.99 and 1,860.48 is: 2,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.23 : 4,303.99 = 1,860.48 : x
  2. Step 2: Convert to fraction form
    3,120.23/4,303.99 = 1,860.48/x
  3. Step 3: Cross multiply
    3,120.23x = 4,303.99 × 1,860.48
  4. Step 4: Simplify right side
    3,120.23x = 8,007,487.32
  5. Step 5: Solve for x
    x = 8,007,487.32/3,120.23
  6. Step 6: Final answer
    x = 2,566.31

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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.