Home / 2,166,835.32-2,989,429.74-1,403,309.88

Finding the Fourth Proportional to 2,166,835.32, 2,989,429.74 and 1,403,309.88

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Solution

The fourth proportional to 2,166,835.32, 2,989,429.74 and 1,403,309.88 is: 1,936,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,835.32 : 2,989,429.74 = 1,403,309.88 : x
  2. Step 2: Convert to fraction form
    2,166,835.32/2,989,429.74 = 1,403,309.88/x
  3. Step 3: Cross multiply
    2,166,835.32x = 2,989,429.74 × 1,403,309.88
  4. Step 4: Simplify right side
    2,166,835.32x = 4,195,096,289,707.83
  5. Step 5: Solve for x
    x = 4,195,096,289,707.83/2,166,835.32
  6. Step 6: Final answer
    x = 1,936,047.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.