Home / 5,585.40-7,694.88-3,903.84

Finding the Fourth Proportional to 5,585.40, 7,694.88 and 3,903.84

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Solution

The fourth proportional to 5,585.40, 7,694.88 and 3,903.84 is: 5,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.40 : 7,694.88 = 3,903.84 : x
  2. Step 2: Convert to fraction form
    5,585.40/7,694.88 = 3,903.84/x
  3. Step 3: Cross multiply
    5,585.40x = 7,694.88 × 3,903.84
  4. Step 4: Simplify right side
    5,585.40x = 30,039,580.34
  5. Step 5: Solve for x
    x = 30,039,580.34/5,585.40
  6. Step 6: Final answer
    x = 5,378.23

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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.