Home / 2,308.64-3,457.20-1,440.32

Finding the Fourth Proportional to 2,308.64, 3,457.20 and 1,440.32

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Solution

The fourth proportional to 2,308.64, 3,457.20 and 1,440.32 is: 2,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.64 : 3,457.20 = 1,440.32 : x
  2. Step 2: Convert to fraction form
    2,308.64/3,457.20 = 1,440.32/x
  3. Step 3: Cross multiply
    2,308.64x = 3,457.20 × 1,440.32
  4. Step 4: Simplify right side
    2,308.64x = 4,979,474.30
  5. Step 5: Solve for x
    x = 4,979,474.30/2,308.64
  6. Step 6: Final answer
    x = 2,156.89

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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.