Home / 2,141.81-2,955.47-1,197.65

Finding the Fourth Proportional to 2,141.81, 2,955.47 and 1,197.65

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Solution

The fourth proportional to 2,141.81, 2,955.47 and 1,197.65 is: 1,652.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.81 : 2,955.47 = 1,197.65 : x
  2. Step 2: Convert to fraction form
    2,141.81/2,955.47 = 1,197.65/x
  3. Step 3: Cross multiply
    2,141.81x = 2,955.47 × 1,197.65
  4. Step 4: Simplify right side
    2,141.81x = 3,539,597.88
  5. Step 5: Solve for x
    x = 3,539,597.88/2,141.81
  6. Step 6: Final answer
    x = 1,652.62

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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.