Home / 2,588.21-3,876.12-1,416.45

Finding the Fourth Proportional to 2,588.21, 3,876.12 and 1,416.45

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Solution

The fourth proportional to 2,588.21, 3,876.12 and 1,416.45 is: 2,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.21 : 3,876.12 = 1,416.45 : x
  2. Step 2: Convert to fraction form
    2,588.21/3,876.12 = 1,416.45/x
  3. Step 3: Cross multiply
    2,588.21x = 3,876.12 × 1,416.45
  4. Step 4: Simplify right side
    2,588.21x = 5,490,330.17
  5. Step 5: Solve for x
    x = 5,490,330.17/2,588.21
  6. Step 6: Final answer
    x = 2,121.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.