Home / 1,937.12-2,905.77-1,611.90

Finding the Fourth Proportional to 1,937.12, 2,905.77 and 1,611.90

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Solution

The fourth proportional to 1,937.12, 2,905.77 and 1,611.90 is: 2,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.12 : 2,905.77 = 1,611.90 : x
  2. Step 2: Convert to fraction form
    1,937.12/2,905.77 = 1,611.90/x
  3. Step 3: Cross multiply
    1,937.12x = 2,905.77 × 1,611.90
  4. Step 4: Simplify right side
    1,937.12x = 4,683,816.71
  5. Step 5: Solve for x
    x = 4,683,816.71/1,937.12
  6. Step 6: Final answer
    x = 2,417.93

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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.