Home / 2,970.12-4,124.55-2,941.32

Finding the Fourth Proportional to 2,970.12, 4,124.55 and 2,941.32

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Solution

The fourth proportional to 2,970.12, 4,124.55 and 2,941.32 is: 4,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.12 : 4,124.55 = 2,941.32 : x
  2. Step 2: Convert to fraction form
    2,970.12/4,124.55 = 2,941.32/x
  3. Step 3: Cross multiply
    2,970.12x = 4,124.55 × 2,941.32
  4. Step 4: Simplify right side
    2,970.12x = 12,131,621.41
  5. Step 5: Solve for x
    x = 12,131,621.41/2,970.12
  6. Step 6: Final answer
    x = 4,084.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.