Home / 5,286.89-7,928.29-1,588.25

Finding the Fourth Proportional to 5,286.89, 7,928.29 and 1,588.25

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Solution

The fourth proportional to 5,286.89, 7,928.29 and 1,588.25 is: 2,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.89 : 7,928.29 = 1,588.25 : x
  2. Step 2: Convert to fraction form
    5,286.89/7,928.29 = 1,588.25/x
  3. Step 3: Cross multiply
    5,286.89x = 7,928.29 × 1,588.25
  4. Step 4: Simplify right side
    5,286.89x = 12,592,106.59
  5. Step 5: Solve for x
    x = 12,592,106.59/5,286.89
  6. Step 6: Final answer
    x = 2,381.76

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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.