Home / 1,353.10-2,025.60-1,207.30

Finding the Fourth Proportional to 1,353.10, 2,025.60 and 1,207.30

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Solution

The fourth proportional to 1,353.10, 2,025.60 and 1,207.30 is: 1,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.10 : 2,025.60 = 1,207.30 : x
  2. Step 2: Convert to fraction form
    1,353.10/2,025.60 = 1,207.30/x
  3. Step 3: Cross multiply
    1,353.10x = 2,025.60 × 1,207.30
  4. Step 4: Simplify right side
    1,353.10x = 2,445,506.88
  5. Step 5: Solve for x
    x = 2,445,506.88/1,353.10
  6. Step 6: Final answer
    x = 1,807.34

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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.