Home / 2,925.19-4,386.75-976.96

Finding the Fourth Proportional to 2,925.19, 4,386.75 and 976.96

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Solution

The fourth proportional to 2,925.19, 4,386.75 and 976.96 is: 1,465.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.19 : 4,386.75 = 976.96 : x
  2. Step 2: Convert to fraction form
    2,925.19/4,386.75 = 976.96/x
  3. Step 3: Cross multiply
    2,925.19x = 4,386.75 × 976.96
  4. Step 4: Simplify right side
    2,925.19x = 4,285,679.28
  5. Step 5: Solve for x
    x = 4,285,679.28/2,925.19
  6. Step 6: Final answer
    x = 1,465.09

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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.