Home / 5,077.28-7,615.98-1,790.46

Finding the Fourth Proportional to 5,077.28, 7,615.98 and 1,790.46

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Solution

The fourth proportional to 5,077.28, 7,615.98 and 1,790.46 is: 2,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.28 : 7,615.98 = 1,790.46 : x
  2. Step 2: Convert to fraction form
    5,077.28/7,615.98 = 1,790.46/x
  3. Step 3: Cross multiply
    5,077.28x = 7,615.98 × 1,790.46
  4. Step 4: Simplify right side
    5,077.28x = 13,636,107.55
  5. Step 5: Solve for x
    x = 13,636,107.55/5,077.28
  6. Step 6: Final answer
    x = 2,685.71

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1.5x scale

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.