Home / 7,638.78-10,541.49-4,281.60

Finding the Fourth Proportional to 7,638.78, 10,541.49 and 4,281.60

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Solution

The fourth proportional to 7,638.78, 10,541.49 and 4,281.60 is: 5,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.78 : 10,541.49 = 4,281.60 : x
  2. Step 2: Convert to fraction form
    7,638.78/10,541.49 = 4,281.60/x
  3. Step 3: Cross multiply
    7,638.78x = 10,541.49 × 4,281.60
  4. Step 4: Simplify right side
    7,638.78x = 45,134,443.58
  5. Step 5: Solve for x
    x = 45,134,443.58/7,638.78
  6. Step 6: Final answer
    x = 5,908.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.