Home / 2,151.08-2,968.36-1,207

Finding the Fourth Proportional to 2,151.08, 2,968.36 and 1,207

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Solution

The fourth proportional to 2,151.08, 2,968.36 and 1,207 is: 1,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.08 : 2,968.36 = 1,207 : x
  2. Step 2: Convert to fraction form
    2,151.08/2,968.36 = 1,207/x
  3. Step 3: Cross multiply
    2,151.08x = 2,968.36 × 1,207
  4. Step 4: Simplify right side
    2,151.08x = 3,582,810.52
  5. Step 5: Solve for x
    x = 3,582,810.52/2,151.08
  6. Step 6: Final answer
    x = 1,665.59

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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.