Home / 2,153,820-2,972,291.52-1,186,984.96

Finding the Fourth Proportional to 2,153,820, 2,972,291.52 and 1,186,984.96

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Solution

The fourth proportional to 2,153,820, 2,972,291.52 and 1,186,984.96 is: 1,638,050.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,820 : 2,972,291.52 = 1,186,984.96 : x
  2. Step 2: Convert to fraction form
    2,153,820/2,972,291.52 = 1,186,984.96/x
  3. Step 3: Cross multiply
    2,153,820x = 2,972,291.52 × 1,186,984.96
  4. Step 4: Simplify right side
    2,153,820x = 3,528,065,330,975.54
  5. Step 5: Solve for x
    x = 3,528,065,330,975.54/2,153,820
  6. Step 6: Final answer
    x = 1,638,050.22

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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.