Home / 7,031.39-10,541.78-4,257.39

Finding the Fourth Proportional to 7,031.39, 10,541.78 and 4,257.39

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Solution

The fourth proportional to 7,031.39, 10,541.78 and 4,257.39 is: 6,382.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.39 : 10,541.78 = 4,257.39 : x
  2. Step 2: Convert to fraction form
    7,031.39/10,541.78 = 4,257.39/x
  3. Step 3: Cross multiply
    7,031.39x = 10,541.78 × 4,257.39
  4. Step 4: Simplify right side
    7,031.39x = 44,880,479.40
  5. Step 5: Solve for x
    x = 44,880,479.40/7,031.39
  6. Step 6: Final answer
    x = 6,382.88

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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.