Home / 3,881.48-5,356.68-2,557.67

Finding the Fourth Proportional to 3,881.48, 5,356.68 and 2,557.67

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Solution

The fourth proportional to 3,881.48, 5,356.68 and 2,557.67 is: 3,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.48 : 5,356.68 = 2,557.67 : x
  2. Step 2: Convert to fraction form
    3,881.48/5,356.68 = 2,557.67/x
  3. Step 3: Cross multiply
    3,881.48x = 5,356.68 × 2,557.67
  4. Step 4: Simplify right side
    3,881.48x = 13,700,619.74
  5. Step 5: Solve for x
    x = 13,700,619.74/3,881.48
  6. Step 6: Final answer
    x = 3,529.74

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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.