Home / 2,308.16-3,460.08-1,280

Finding the Fourth Proportional to 2,308.16, 3,460.08 and 1,280

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Solution

The fourth proportional to 2,308.16, 3,460.08 and 1,280 is: 1,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.16 : 3,460.08 = 1,280 : x
  2. Step 2: Convert to fraction form
    2,308.16/3,460.08 = 1,280/x
  3. Step 3: Cross multiply
    2,308.16x = 3,460.08 × 1,280
  4. Step 4: Simplify right side
    2,308.16x = 4,428,902.40
  5. Step 5: Solve for x
    x = 4,428,902.40/2,308.16
  6. Step 6: Final answer
    x = 1,918.80

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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.