Home / 2,685,913.40-4,028,870.10-2,657,919.80

Finding the Fourth Proportional to 2,685,913.40, 4,028,870.10 and 2,657,919.80

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Solution

The fourth proportional to 2,685,913.40, 4,028,870.10 and 2,657,919.80 is: 3,986,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685,913.40 : 4,028,870.10 = 2,657,919.80 : x
  2. Step 2: Convert to fraction form
    2,685,913.40/4,028,870.10 = 2,657,919.80/x
  3. Step 3: Cross multiply
    2,685,913.40x = 4,028,870.10 × 2,657,919.80
  4. Step 4: Simplify right side
    2,685,913.40x = 10,708,413,610,417.98
  5. Step 5: Solve for x
    x = 10,708,413,610,417.98/2,685,913.40
  6. Step 6: Final answer
    x = 3,986,879.70

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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.