Home / 2,915.30-4,023.12-1,588.98

Finding the Fourth Proportional to 2,915.30, 4,023.12 and 1,588.98

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Solution

The fourth proportional to 2,915.30, 4,023.12 and 1,588.98 is: 2,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.30 : 4,023.12 = 1,588.98 : x
  2. Step 2: Convert to fraction form
    2,915.30/4,023.12 = 1,588.98/x
  3. Step 3: Cross multiply
    2,915.30x = 4,023.12 × 1,588.98
  4. Step 4: Simplify right side
    2,915.30x = 6,392,657.22
  5. Step 5: Solve for x
    x = 6,392,657.22/2,915.30
  6. Step 6: Final answer
    x = 2,192.79

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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.