Home / 3,685.89-5,528.31-1,930.32

Finding the Fourth Proportional to 3,685.89, 5,528.31 and 1,930.32

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Solution

The fourth proportional to 3,685.89, 5,528.31 and 1,930.32 is: 2,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.89 : 5,528.31 = 1,930.32 : x
  2. Step 2: Convert to fraction form
    3,685.89/5,528.31 = 1,930.32/x
  3. Step 3: Cross multiply
    3,685.89x = 5,528.31 × 1,930.32
  4. Step 4: Simplify right side
    3,685.89x = 10,671,407.36
  5. Step 5: Solve for x
    x = 10,671,407.36/3,685.89
  6. Step 6: Final answer
    x = 2,895.21

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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.