Home / 2,890.76-4,334.36-1,407.03

Finding the Fourth Proportional to 2,890.76, 4,334.36 and 1,407.03

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Solution

The fourth proportional to 2,890.76, 4,334.36 and 1,407.03 is: 2,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.76 : 4,334.36 = 1,407.03 : x
  2. Step 2: Convert to fraction form
    2,890.76/4,334.36 = 1,407.03/x
  3. Step 3: Cross multiply
    2,890.76x = 4,334.36 × 1,407.03
  4. Step 4: Simplify right side
    2,890.76x = 6,098,567.52
  5. Step 5: Solve for x
    x = 6,098,567.52/2,890.76
  6. Step 6: Final answer
    x = 2,109.68

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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.