Home / 2,915.53-4,051.37-2,885.56

Finding the Fourth Proportional to 2,915.53, 4,051.37 and 2,885.56

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Solution

The fourth proportional to 2,915.53, 4,051.37 and 2,885.56 is: 4,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.53 : 4,051.37 = 2,885.56 : x
  2. Step 2: Convert to fraction form
    2,915.53/4,051.37 = 2,885.56/x
  3. Step 3: Cross multiply
    2,915.53x = 4,051.37 × 2,885.56
  4. Step 4: Simplify right side
    2,915.53x = 11,690,471.22
  5. Step 5: Solve for x
    x = 11,690,471.22/2,915.53
  6. Step 6: Final answer
    x = 4,009.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.