Home / 5,326.68-7,990.71-1,628.26

Finding the Fourth Proportional to 5,326.68, 7,990.71 and 1,628.26

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Solution

The fourth proportional to 5,326.68, 7,990.71 and 1,628.26 is: 2,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.68 : 7,990.71 = 1,628.26 : x
  2. Step 2: Convert to fraction form
    5,326.68/7,990.71 = 1,628.26/x
  3. Step 3: Cross multiply
    5,326.68x = 7,990.71 × 1,628.26
  4. Step 4: Simplify right side
    5,326.68x = 13,010,953.46
  5. Step 5: Solve for x
    x = 13,010,953.46/5,326.68
  6. Step 6: Final answer
    x = 2,442.60

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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.