Home / 4,918.90-7,378.58-1,957.95

Finding the Fourth Proportional to 4,918.90, 7,378.58 and 1,957.95

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Solution

The fourth proportional to 4,918.90, 7,378.58 and 1,957.95 is: 2,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.90 : 7,378.58 = 1,957.95 : x
  2. Step 2: Convert to fraction form
    4,918.90/7,378.58 = 1,957.95/x
  3. Step 3: Cross multiply
    4,918.90x = 7,378.58 × 1,957.95
  4. Step 4: Simplify right side
    4,918.90x = 14,446,890.71
  5. Step 5: Solve for x
    x = 14,446,890.71/4,918.90
  6. Step 6: Final answer
    x = 2,937.02

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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.