Home / 1,915.08-2,870.92-1,133.16

Finding the Fourth Proportional to 1,915.08, 2,870.92 and 1,133.16

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Solution

The fourth proportional to 1,915.08, 2,870.92 and 1,133.16 is: 1,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.08 : 2,870.92 = 1,133.16 : x
  2. Step 2: Convert to fraction form
    1,915.08/2,870.92 = 1,133.16/x
  3. Step 3: Cross multiply
    1,915.08x = 2,870.92 × 1,133.16
  4. Step 4: Simplify right side
    1,915.08x = 3,253,211.71
  5. Step 5: Solve for x
    x = 3,253,211.71/1,915.08
  6. Step 6: Final answer
    x = 1,698.73

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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.