Home / 5,087.40-7,629.72-1,576.50

Finding the Fourth Proportional to 5,087.40, 7,629.72 and 1,576.50

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Solution

The fourth proportional to 5,087.40, 7,629.72 and 1,576.50 is: 2,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.40 : 7,629.72 = 1,576.50 : x
  2. Step 2: Convert to fraction form
    5,087.40/7,629.72 = 1,576.50/x
  3. Step 3: Cross multiply
    5,087.40x = 7,629.72 × 1,576.50
  4. Step 4: Simplify right side
    5,087.40x = 12,028,253.58
  5. Step 5: Solve for x
    x = 12,028,253.58/5,087.40
  6. Step 6: Final answer
    x = 2,364.32

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Double scale
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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.