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Finding the Fourth Proportional to 5,929.64, 8,893.45 and 1,980.45

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Solution

The fourth proportional to 5,929.64, 8,893.45 and 1,980.45 is: 2,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,929.64 : 8,893.45 = 1,980.45 : x
  2. Step 2: Convert to fraction form
    5,929.64/8,893.45 = 1,980.45/x
  3. Step 3: Cross multiply
    5,929.64x = 8,893.45 × 1,980.45
  4. Step 4: Simplify right side
    5,929.64x = 17,612,999.38
  5. Step 5: Solve for x
    x = 17,612,999.38/5,929.64
  6. Step 6: Final answer
    x = 2,970.33

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1.5x scale

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.