Home / 2,940.16-4,056.52-1,681.15

Finding the Fourth Proportional to 2,940.16, 4,056.52 and 1,681.15

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Solution

The fourth proportional to 2,940.16, 4,056.52 and 1,681.15 is: 2,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.16 : 4,056.52 = 1,681.15 : x
  2. Step 2: Convert to fraction form
    2,940.16/4,056.52 = 1,681.15/x
  3. Step 3: Cross multiply
    2,940.16x = 4,056.52 × 1,681.15
  4. Step 4: Simplify right side
    2,940.16x = 6,819,604.25
  5. Step 5: Solve for x
    x = 6,819,604.25/2,940.16
  6. Step 6: Final answer
    x = 2,319.47

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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.