Home / 2,915.20-4,023.10-1,588.98

Finding the Fourth Proportional to 2,915.20, 4,023.10 and 1,588.98

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Solution

The fourth proportional to 2,915.20, 4,023.10 and 1,588.98 is: 2,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.20 : 4,023.10 = 1,588.98 : x
  2. Step 2: Convert to fraction form
    2,915.20/4,023.10 = 1,588.98/x
  3. Step 3: Cross multiply
    2,915.20x = 4,023.10 × 1,588.98
  4. Step 4: Simplify right side
    2,915.20x = 6,392,615.38
  5. Step 5: Solve for x
    x = 6,392,615.38/2,915.20
  6. Step 6: Final answer
    x = 2,192.86

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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.