Home / 3,931.48-5,427.69-2,606.98

Finding the Fourth Proportional to 3,931.48, 5,427.69 and 2,606.98

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Solution

The fourth proportional to 3,931.48, 5,427.69 and 2,606.98 is: 3,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.48 : 5,427.69 = 2,606.98 : x
  2. Step 2: Convert to fraction form
    3,931.48/5,427.69 = 2,606.98/x
  3. Step 3: Cross multiply
    3,931.48x = 5,427.69 × 2,606.98
  4. Step 4: Simplify right side
    3,931.48x = 14,149,879.28
  5. Step 5: Solve for x
    x = 14,149,879.28/3,931.48
  6. Step 6: Final answer
    x = 3,599.12

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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.