Home / 5,011.24-6,915.78-3,148.84

Finding the Fourth Proportional to 5,011.24, 6,915.78 and 3,148.84

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Solution

The fourth proportional to 5,011.24, 6,915.78 and 3,148.84 is: 4,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.24 : 6,915.78 = 3,148.84 : x
  2. Step 2: Convert to fraction form
    5,011.24/6,915.78 = 3,148.84/x
  3. Step 3: Cross multiply
    5,011.24x = 6,915.78 × 3,148.84
  4. Step 4: Simplify right side
    5,011.24x = 21,776,684.70
  5. Step 5: Solve for x
    x = 21,776,684.70/5,011.24
  6. Step 6: Final answer
    x = 4,345.57

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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.