Home / 2,157,001.61-2,976,678.18-1,190,167.79

Finding the Fourth Proportional to 2,157,001.61, 2,976,678.18 and 1,190,167.79

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Solution

The fourth proportional to 2,157,001.61, 2,976,678.18 and 1,190,167.79 is: 1,642,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,001.61 : 2,976,678.18 = 1,190,167.79 : x
  2. Step 2: Convert to fraction form
    2,157,001.61/2,976,678.18 = 1,190,167.79/x
  3. Step 3: Cross multiply
    2,157,001.61x = 2,976,678.18 × 1,190,167.79
  4. Step 4: Simplify right side
    2,157,001.61x = 3,542,746,476,148.43
  5. Step 5: Solve for x
    x = 3,542,746,476,148.43/2,157,001.61
  6. Step 6: Final answer
    x = 1,642,440.35

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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.