Home / 3,860.48-5,790.32-1,087.08

Finding the Fourth Proportional to 3,860.48, 5,790.32 and 1,087.08

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Solution

The fourth proportional to 3,860.48, 5,790.32 and 1,087.08 is: 1,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.48 : 5,790.32 = 1,087.08 : x
  2. Step 2: Convert to fraction form
    3,860.48/5,790.32 = 1,087.08/x
  3. Step 3: Cross multiply
    3,860.48x = 5,790.32 × 1,087.08
  4. Step 4: Simplify right side
    3,860.48x = 6,294,541.07
  5. Step 5: Solve for x
    x = 6,294,541.07/3,860.48
  6. Step 6: Final answer
    x = 1,630.51

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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.