Home / 2,117,971.90-3,176,188.76-1,159,136.12

Finding the Fourth Proportional to 2,117,971.90, 3,176,188.76 and 1,159,136.12

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Solution

The fourth proportional to 2,117,971.90, 3,176,188.76 and 1,159,136.12 is: 1,738,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,971.90 : 3,176,188.76 = 1,159,136.12 : x
  2. Step 2: Convert to fraction form
    2,117,971.90/3,176,188.76 = 1,159,136.12/x
  3. Step 3: Cross multiply
    2,117,971.90x = 3,176,188.76 × 1,159,136.12
  4. Step 4: Simplify right side
    2,117,971.90x = 3,681,635,119,972.18
  5. Step 5: Solve for x
    x = 3,681,635,119,972.18/2,117,971.90
  6. Step 6: Final answer
    x = 1,738,283.27

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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.