Home / 5,915.24-8,870.64-1,965.75

Finding the Fourth Proportional to 5,915.24, 8,870.64 and 1,965.75

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Solution

The fourth proportional to 5,915.24, 8,870.64 and 1,965.75 is: 2,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.24 : 8,870.64 = 1,965.75 : x
  2. Step 2: Convert to fraction form
    5,915.24/8,870.64 = 1,965.75/x
  3. Step 3: Cross multiply
    5,915.24x = 8,870.64 × 1,965.75
  4. Step 4: Simplify right side
    5,915.24x = 17,437,460.58
  5. Step 5: Solve for x
    x = 17,437,460.58/5,915.24
  6. Step 6: Final answer
    x = 2,947.89

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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.