Home / 1,579.72-2,370.80-1,031.76

Finding the Fourth Proportional to 1,579.72, 2,370.80 and 1,031.76

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Solution

The fourth proportional to 1,579.72, 2,370.80 and 1,031.76 is: 1,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.72 : 2,370.80 = 1,031.76 : x
  2. Step 2: Convert to fraction form
    1,579.72/2,370.80 = 1,031.76/x
  3. Step 3: Cross multiply
    1,579.72x = 2,370.80 × 1,031.76
  4. Step 4: Simplify right side
    1,579.72x = 2,446,096.61
  5. Step 5: Solve for x
    x = 2,446,096.61/1,579.72
  6. Step 6: Final answer
    x = 1,548.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.