Home / 2,337.12-3,225.36-1,289.20

Finding the Fourth Proportional to 2,337.12, 3,225.36 and 1,289.20

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Solution

The fourth proportional to 2,337.12, 3,225.36 and 1,289.20 is: 1,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.12 : 3,225.36 = 1,289.20 : x
  2. Step 2: Convert to fraction form
    2,337.12/3,225.36 = 1,289.20/x
  3. Step 3: Cross multiply
    2,337.12x = 3,225.36 × 1,289.20
  4. Step 4: Simplify right side
    2,337.12x = 4,158,134.11
  5. Step 5: Solve for x
    x = 4,158,134.11/2,337.12
  6. Step 6: Final answer
    x = 1,779.17

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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.