Home / 2,925.50-4,040.46-2,270.30

Finding the Fourth Proportional to 2,925.50, 4,040.46 and 2,270.30

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Solution

The fourth proportional to 2,925.50, 4,040.46 and 2,270.30 is: 3,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.50 : 4,040.46 = 2,270.30 : x
  2. Step 2: Convert to fraction form
    2,925.50/4,040.46 = 2,270.30/x
  3. Step 3: Cross multiply
    2,925.50x = 4,040.46 × 2,270.30
  4. Step 4: Simplify right side
    2,925.50x = 9,173,056.34
  5. Step 5: Solve for x
    x = 9,173,056.34/2,925.50
  6. Step 6: Final answer
    x = 3,135.55

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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.