Home / 1,580.01-2,372.29-1,120.74

Finding the Fourth Proportional to 1,580.01, 2,372.29 and 1,120.74

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Solution

The fourth proportional to 1,580.01, 2,372.29 and 1,120.74 is: 1,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.01 : 2,372.29 = 1,120.74 : x
  2. Step 2: Convert to fraction form
    1,580.01/2,372.29 = 1,120.74/x
  3. Step 3: Cross multiply
    1,580.01x = 2,372.29 × 1,120.74
  4. Step 4: Simplify right side
    1,580.01x = 2,658,708.60
  5. Step 5: Solve for x
    x = 2,658,708.60/1,580.01
  6. Step 6: Final answer
    x = 1,682.72

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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.