Home / 5,260.47-7,890.39-1,973.28

Finding the Fourth Proportional to 5,260.47, 7,890.39 and 1,973.28

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Solution

The fourth proportional to 5,260.47, 7,890.39 and 1,973.28 is: 2,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.47 : 7,890.39 = 1,973.28 : x
  2. Step 2: Convert to fraction form
    5,260.47/7,890.39 = 1,973.28/x
  3. Step 3: Cross multiply
    5,260.47x = 7,890.39 × 1,973.28
  4. Step 4: Simplify right side
    5,260.47x = 15,569,948.78
  5. Step 5: Solve for x
    x = 15,569,948.78/5,260.47
  6. Step 6: Final answer
    x = 2,959.80

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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.