Home / 2,515.27-3,464.60-2,116.45

Finding the Fourth Proportional to 2,515.27, 3,464.60 and 2,116.45

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Solution

The fourth proportional to 2,515.27, 3,464.60 and 2,116.45 is: 2,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.27 : 3,464.60 = 2,116.45 : x
  2. Step 2: Convert to fraction form
    2,515.27/3,464.60 = 2,116.45/x
  3. Step 3: Cross multiply
    2,515.27x = 3,464.60 × 2,116.45
  4. Step 4: Simplify right side
    2,515.27x = 7,332,652.67
  5. Step 5: Solve for x
    x = 7,332,652.67/2,515.27
  6. Step 6: Final answer
    x = 2,915.25

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1.5x scale

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.