Home / 2,157,137.40-2,976,865.74-1,190,303.76

Finding the Fourth Proportional to 2,157,137.40, 2,976,865.74 and 1,190,303.76

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Solution

The fourth proportional to 2,157,137.40, 2,976,865.74 and 1,190,303.76 is: 1,642,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,137.40 : 2,976,865.74 = 1,190,303.76 : x
  2. Step 2: Convert to fraction form
    2,157,137.40/2,976,865.74 = 1,190,303.76/x
  3. Step 3: Cross multiply
    2,157,137.40x = 2,976,865.74 × 1,190,303.76
  4. Step 4: Simplify right side
    2,157,137.40x = 3,543,374,483,337.18
  5. Step 5: Solve for x
    x = 3,543,374,483,337.18/2,157,137.40
  6. Step 6: Final answer
    x = 1,642,628.09

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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.