Home / 2,856.53-3,942.05-1,677.62

Finding the Fourth Proportional to 2,856.53, 3,942.05 and 1,677.62

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Solution

The fourth proportional to 2,856.53, 3,942.05 and 1,677.62 is: 2,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.53 : 3,942.05 = 1,677.62 : x
  2. Step 2: Convert to fraction form
    2,856.53/3,942.05 = 1,677.62/x
  3. Step 3: Cross multiply
    2,856.53x = 3,942.05 × 1,677.62
  4. Step 4: Simplify right side
    2,856.53x = 6,613,263.39
  5. Step 5: Solve for x
    x = 6,613,263.39/2,856.53
  6. Step 6: Final answer
    x = 2,315.14

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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.