Home / 7,043.32-9,719.52-3,899.56

Finding the Fourth Proportional to 7,043.32, 9,719.52 and 3,899.56

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Solution

The fourth proportional to 7,043.32, 9,719.52 and 3,899.56 is: 5,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.32 : 9,719.52 = 3,899.56 : x
  2. Step 2: Convert to fraction form
    7,043.32/9,719.52 = 3,899.56/x
  3. Step 3: Cross multiply
    7,043.32x = 9,719.52 × 3,899.56
  4. Step 4: Simplify right side
    7,043.32x = 37,901,851.41
  5. Step 5: Solve for x
    x = 37,901,851.41/7,043.32
  6. Step 6: Final answer
    x = 5,381.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.