Home / 3,686.58-5,525.28-1,930.68

Finding the Fourth Proportional to 3,686.58, 5,525.28 and 1,930.68

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Solution

The fourth proportional to 3,686.58, 5,525.28 and 1,930.68 is: 2,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.58 : 5,525.28 = 1,930.68 : x
  2. Step 2: Convert to fraction form
    3,686.58/5,525.28 = 1,930.68/x
  3. Step 3: Cross multiply
    3,686.58x = 5,525.28 × 1,930.68
  4. Step 4: Simplify right side
    3,686.58x = 10,667,547.59
  5. Step 5: Solve for x
    x = 10,667,547.59/3,686.58
  6. Step 6: Final answer
    x = 2,893.62

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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.