Home / 2,915.00-4,022.56-1,655.90

Finding the Fourth Proportional to 2,915.00, 4,022.56 and 1,655.90

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Solution

The fourth proportional to 2,915.00, 4,022.56 and 1,655.90 is: 2,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.00 : 4,022.56 = 1,655.90 : x
  2. Step 2: Convert to fraction form
    2,915.00/4,022.56 = 1,655.90/x
  3. Step 3: Cross multiply
    2,915.00x = 4,022.56 × 1,655.90
  4. Step 4: Simplify right side
    2,915.00x = 6,660,939.06
  5. Step 5: Solve for x
    x = 6,660,939.06/2,915.00
  6. Step 6: Final answer
    x = 2,285.05

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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.