Home / 2,975.30-4,465.69-1,515.50

Finding the Fourth Proportional to 2,975.30, 4,465.69 and 1,515.50

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Solution

The fourth proportional to 2,975.30, 4,465.69 and 1,515.50 is: 2,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.30 : 4,465.69 = 1,515.50 : x
  2. Step 2: Convert to fraction form
    2,975.30/4,465.69 = 1,515.50/x
  3. Step 3: Cross multiply
    2,975.30x = 4,465.69 × 1,515.50
  4. Step 4: Simplify right side
    2,975.30x = 6,767,753.20
  5. Step 5: Solve for x
    x = 6,767,753.20/2,975.30
  6. Step 6: Final answer
    x = 2,274.65

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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.