Home / 2,153,619.72-2,972,125.30-1,186,748.36

Finding the Fourth Proportional to 2,153,619.72, 2,972,125.30 and 1,186,748.36

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Solution

The fourth proportional to 2,153,619.72, 2,972,125.30 and 1,186,748.36 is: 1,637,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,619.72 : 2,972,125.30 = 1,186,748.36 : x
  2. Step 2: Convert to fraction form
    2,153,619.72/2,972,125.30 = 1,186,748.36/x
  3. Step 3: Cross multiply
    2,153,619.72x = 2,972,125.30 × 1,186,748.36
  4. Step 4: Simplify right side
    2,153,619.72x = 3,527,164,825,489.51
  5. Step 5: Solve for x
    x = 3,527,164,825,489.51/2,153,619.72
  6. Step 6: Final answer
    x = 1,637,784.42

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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.