Home / 4,918.70-6,787.01-2,929.20

Finding the Fourth Proportional to 4,918.70, 6,787.01 and 2,929.20

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Solution

The fourth proportional to 4,918.70, 6,787.01 and 2,929.20 is: 4,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.70 : 6,787.01 = 2,929.20 : x
  2. Step 2: Convert to fraction form
    4,918.70/6,787.01 = 2,929.20/x
  3. Step 3: Cross multiply
    4,918.70x = 6,787.01 × 2,929.20
  4. Step 4: Simplify right side
    4,918.70x = 19,880,495.05
  5. Step 5: Solve for x
    x = 19,880,495.05/4,918.70
  6. Step 6: Final answer
    x = 4,041.82

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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.