Home / 2,389.16-3,296.40-1,341.20

Finding the Fourth Proportional to 2,389.16, 3,296.40 and 1,341.20

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Solution

The fourth proportional to 2,389.16, 3,296.40 and 1,341.20 is: 1,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.16 : 3,296.40 = 1,341.20 : x
  2. Step 2: Convert to fraction form
    2,389.16/3,296.40 = 1,341.20/x
  3. Step 3: Cross multiply
    2,389.16x = 3,296.40 × 1,341.20
  4. Step 4: Simplify right side
    2,389.16x = 4,421,134.89
  5. Step 5: Solve for x
    x = 4,421,134.89/2,389.16
  6. Step 6: Final answer
    x = 1,850.50

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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.