Home / 2,890,087.50-3,988,270.80-1,600,900.86

Finding the Fourth Proportional to 2,890,087.50, 3,988,270.80 and 1,600,900.86

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Solution

The fourth proportional to 2,890,087.50, 3,988,270.80 and 1,600,900.86 is: 2,209,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,087.50 : 3,988,270.80 = 1,600,900.86 : x
  2. Step 2: Convert to fraction form
    2,890,087.50/3,988,270.80 = 1,600,900.86/x
  3. Step 3: Cross multiply
    2,890,087.50x = 3,988,270.80 × 1,600,900.86
  4. Step 4: Simplify right side
    2,890,087.50x = 6,384,826,153,632.89
  5. Step 5: Solve for x
    x = 6,384,826,153,632.89/2,890,087.50
  6. Step 6: Final answer
    x = 2,209,215.52

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1.5x scale

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.