Home / 2,970.84-4,455.45-1,122.96

Finding the Fourth Proportional to 2,970.84, 4,455.45 and 1,122.96

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Solution

The fourth proportional to 2,970.84, 4,455.45 and 1,122.96 is: 1,684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.84 : 4,455.45 = 1,122.96 : x
  2. Step 2: Convert to fraction form
    2,970.84/4,455.45 = 1,122.96/x
  3. Step 3: Cross multiply
    2,970.84x = 4,455.45 × 1,122.96
  4. Step 4: Simplify right side
    2,970.84x = 5,003,292.13
  5. Step 5: Solve for x
    x = 5,003,292.13/2,970.84
  6. Step 6: Final answer
    x = 1,684.13

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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.