Home / 2,915.21-4,023.01-1,588.95

Finding the Fourth Proportional to 2,915.21, 4,023.01 and 1,588.95

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Solution

The fourth proportional to 2,915.21, 4,023.01 and 1,588.95 is: 2,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.21 : 4,023.01 = 1,588.95 : x
  2. Step 2: Convert to fraction form
    2,915.21/4,023.01 = 1,588.95/x
  3. Step 3: Cross multiply
    2,915.21x = 4,023.01 × 1,588.95
  4. Step 4: Simplify right side
    2,915.21x = 6,392,361.74
  5. Step 5: Solve for x
    x = 6,392,361.74/2,915.21
  6. Step 6: Final answer
    x = 2,192.76

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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.