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Finding the Fourth Proportional to 2,890.02, 4,335.11 and 1,656.84

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Solution

The fourth proportional to 2,890.02, 4,335.11 and 1,656.84 is: 2,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.02 : 4,335.11 = 1,656.84 : x
  2. Step 2: Convert to fraction form
    2,890.02/4,335.11 = 1,656.84/x
  3. Step 3: Cross multiply
    2,890.02x = 4,335.11 × 1,656.84
  4. Step 4: Simplify right side
    2,890.02x = 7,182,583.65
  5. Step 5: Solve for x
    x = 7,182,583.65/2,890.02
  6. Step 6: Final answer
    x = 2,485.31

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1.5x scale

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.