Home / 3,790.74-5,686.04-1,325.56

Finding the Fourth Proportional to 3,790.74, 5,686.04 and 1,325.56

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Solution

The fourth proportional to 3,790.74, 5,686.04 and 1,325.56 is: 1,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.74 : 5,686.04 = 1,325.56 : x
  2. Step 2: Convert to fraction form
    3,790.74/5,686.04 = 1,325.56/x
  3. Step 3: Cross multiply
    3,790.74x = 5,686.04 × 1,325.56
  4. Step 4: Simplify right side
    3,790.74x = 7,537,187.18
  5. Step 5: Solve for x
    x = 7,537,187.18/3,790.74
  6. Step 6: Final answer
    x = 1,988.32

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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.