Home / 5,160.11-7,740.72-1,648.90

Finding the Fourth Proportional to 5,160.11, 7,740.72 and 1,648.90

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Solution

The fourth proportional to 5,160.11, 7,740.72 and 1,648.90 is: 2,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.11 : 7,740.72 = 1,648.90 : x
  2. Step 2: Convert to fraction form
    5,160.11/7,740.72 = 1,648.90/x
  3. Step 3: Cross multiply
    5,160.11x = 7,740.72 × 1,648.90
  4. Step 4: Simplify right side
    5,160.11x = 12,763,634.50
  5. Step 5: Solve for x
    x = 12,763,634.50/5,160.11
  6. Step 6: Final answer
    x = 2,473.52

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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.