Home / 2,157,053.40-2,976,749.64-1,190,219.40

Finding the Fourth Proportional to 2,157,053.40, 2,976,749.64 and 1,190,219.40

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Solution

The fourth proportional to 2,157,053.40, 2,976,749.64 and 1,190,219.40 is: 1,642,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,053.40 : 2,976,749.64 = 1,190,219.40 : x
  2. Step 2: Convert to fraction form
    2,157,053.40/2,976,749.64 = 1,190,219.40/x
  3. Step 3: Cross multiply
    2,157,053.40x = 2,976,749.64 × 1,190,219.40
  4. Step 4: Simplify right side
    2,157,053.40x = 3,542,985,170,471.02
  5. Step 5: Solve for x
    x = 3,542,985,170,471.02/2,157,053.40
  6. Step 6: Final answer
    x = 1,642,511.57

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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.