Home / 5,382.95-7,428.36-3,287.07

Finding the Fourth Proportional to 5,382.95, 7,428.36 and 3,287.07

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Solution

The fourth proportional to 5,382.95, 7,428.36 and 3,287.07 is: 4,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.95 : 7,428.36 = 3,287.07 : x
  2. Step 2: Convert to fraction form
    5,382.95/7,428.36 = 3,287.07/x
  3. Step 3: Cross multiply
    5,382.95x = 7,428.36 × 3,287.07
  4. Step 4: Simplify right side
    5,382.95x = 24,417,539.31
  5. Step 5: Solve for x
    x = 24,417,539.31/5,382.95
  6. Step 6: Final answer
    x = 4,536.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.