Home / 2,281.65-3,147.28-1,441.68

Finding the Fourth Proportional to 2,281.65, 3,147.28 and 1,441.68

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Solution

The fourth proportional to 2,281.65, 3,147.28 and 1,441.68 is: 1,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.65 : 3,147.28 = 1,441.68 : x
  2. Step 2: Convert to fraction form
    2,281.65/3,147.28 = 1,441.68/x
  3. Step 3: Cross multiply
    2,281.65x = 3,147.28 × 1,441.68
  4. Step 4: Simplify right side
    2,281.65x = 4,537,370.63
  5. Step 5: Solve for x
    x = 4,537,370.63/2,281.65
  6. Step 6: Final answer
    x = 1,988.64

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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.