Home / 4,143.76-5,718.74-2,281.12

Finding the Fourth Proportional to 4,143.76, 5,718.74 and 2,281.12

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Solution

The fourth proportional to 4,143.76, 5,718.74 and 2,281.12 is: 3,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.76 : 5,718.74 = 2,281.12 : x
  2. Step 2: Convert to fraction form
    4,143.76/5,718.74 = 2,281.12/x
  3. Step 3: Cross multiply
    4,143.76x = 5,718.74 × 2,281.12
  4. Step 4: Simplify right side
    4,143.76x = 13,045,132.19
  5. Step 5: Solve for x
    x = 13,045,132.19/4,143.76
  6. Step 6: Final answer
    x = 3,148.14

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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.