Home / 5,148.14-7,723.62-1,685.36

Finding the Fourth Proportional to 5,148.14, 7,723.62 and 1,685.36

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Solution

The fourth proportional to 5,148.14, 7,723.62 and 1,685.36 is: 2,528.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.14 : 7,723.62 = 1,685.36 : x
  2. Step 2: Convert to fraction form
    5,148.14/7,723.62 = 1,685.36/x
  3. Step 3: Cross multiply
    5,148.14x = 7,723.62 × 1,685.36
  4. Step 4: Simplify right side
    5,148.14x = 13,017,080.20
  5. Step 5: Solve for x
    x = 13,017,080.20/5,148.14
  6. Step 6: Final answer
    x = 2,528.50

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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.