Home / 2,925.30-4,035.36-1,979.85

Finding the Fourth Proportional to 2,925.30, 4,035.36 and 1,979.85

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Solution

The fourth proportional to 2,925.30, 4,035.36 and 1,979.85 is: 2,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.30 : 4,035.36 = 1,979.85 : x
  2. Step 2: Convert to fraction form
    2,925.30/4,035.36 = 1,979.85/x
  3. Step 3: Cross multiply
    2,925.30x = 4,035.36 × 1,979.85
  4. Step 4: Simplify right side
    2,925.30x = 7,989,407.50
  5. Step 5: Solve for x
    x = 7,989,407.50/2,925.30
  6. Step 6: Final answer
    x = 2,731.14

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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.