Home / 2,119,739.10-3,175,461.45-1,275,783.90

Finding the Fourth Proportional to 2,119,739.10, 3,175,461.45 and 1,275,783.90

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Solution

The fourth proportional to 2,119,739.10, 3,175,461.45 and 1,275,783.90 is: 1,911,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,739.10 : 3,175,461.45 = 1,275,783.90 : x
  2. Step 2: Convert to fraction form
    2,119,739.10/3,175,461.45 = 1,275,783.90/x
  3. Step 3: Cross multiply
    2,119,739.10x = 3,175,461.45 × 1,275,783.90
  4. Step 4: Simplify right side
    2,119,739.10x = 4,051,202,592,980.66
  5. Step 5: Solve for x
    x = 4,051,202,592,980.66/2,119,739.10
  6. Step 6: Final answer
    x = 1,911,179.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.