Home / 3,955.40-5,931.72-1,357.73

Finding the Fourth Proportional to 3,955.40, 5,931.72 and 1,357.73

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Solution

The fourth proportional to 3,955.40, 5,931.72 and 1,357.73 is: 2,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.40 : 5,931.72 = 1,357.73 : x
  2. Step 2: Convert to fraction form
    3,955.40/5,931.72 = 1,357.73/x
  3. Step 3: Cross multiply
    3,955.40x = 5,931.72 × 1,357.73
  4. Step 4: Simplify right side
    3,955.40x = 8,053,674.20
  5. Step 5: Solve for x
    x = 8,053,674.20/3,955.40
  6. Step 6: Final answer
    x = 2,036.12

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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.