Home / 2,867.04-3,956.42-1,688.18

Finding the Fourth Proportional to 2,867.04, 3,956.42 and 1,688.18

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Solution

The fourth proportional to 2,867.04, 3,956.42 and 1,688.18 is: 2,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.04 : 3,956.42 = 1,688.18 : x
  2. Step 2: Convert to fraction form
    2,867.04/3,956.42 = 1,688.18/x
  3. Step 3: Cross multiply
    2,867.04x = 3,956.42 × 1,688.18
  4. Step 4: Simplify right side
    2,867.04x = 6,679,149.12
  5. Step 5: Solve for x
    x = 6,679,149.12/2,867.04
  6. Step 6: Final answer
    x = 2,329.63

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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.