Home / 2,915.55-4,018.65-2,063.70

Finding the Fourth Proportional to 2,915.55, 4,018.65 and 2,063.70

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Solution

The fourth proportional to 2,915.55, 4,018.65 and 2,063.70 is: 2,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.55 : 4,018.65 = 2,063.70 : x
  2. Step 2: Convert to fraction form
    2,915.55/4,018.65 = 2,063.70/x
  3. Step 3: Cross multiply
    2,915.55x = 4,018.65 × 2,063.70
  4. Step 4: Simplify right side
    2,915.55x = 8,293,288.01
  5. Step 5: Solve for x
    x = 8,293,288.01/2,915.55
  6. Step 6: Final answer
    x = 2,844.50

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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.