Home / 2,333.60-3,492.30-2,139.20

Finding the Fourth Proportional to 2,333.60, 3,492.30 and 2,139.20

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Solution

The fourth proportional to 2,333.60, 3,492.30 and 2,139.20 is: 3,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.60 : 3,492.30 = 2,139.20 : x
  2. Step 2: Convert to fraction form
    2,333.60/3,492.30 = 2,139.20/x
  3. Step 3: Cross multiply
    2,333.60x = 3,492.30 × 2,139.20
  4. Step 4: Simplify right side
    2,333.60x = 7,470,728.16
  5. Step 5: Solve for x
    x = 7,470,728.16/2,333.60
  6. Step 6: Final answer
    x = 3,201.37

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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.