Home / 2,975.10-4,460.40-1,515.30

Finding the Fourth Proportional to 2,975.10, 4,460.40 and 1,515.30

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Solution

The fourth proportional to 2,975.10, 4,460.40 and 1,515.30 is: 2,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.10 : 4,460.40 = 1,515.30 : x
  2. Step 2: Convert to fraction form
    2,975.10/4,460.40 = 1,515.30/x
  3. Step 3: Cross multiply
    2,975.10x = 4,460.40 × 1,515.30
  4. Step 4: Simplify right side
    2,975.10x = 6,758,844.12
  5. Step 5: Solve for x
    x = 6,758,844.12/2,975.10
  6. Step 6: Final answer
    x = 2,271.80

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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.