Home / 5,284.12-7,288.02-3,690.25

Finding the Fourth Proportional to 5,284.12, 7,288.02 and 3,690.25

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Solution

The fourth proportional to 5,284.12, 7,288.02 and 3,690.25 is: 5,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.12 : 7,288.02 = 3,690.25 : x
  2. Step 2: Convert to fraction form
    5,284.12/7,288.02 = 3,690.25/x
  3. Step 3: Cross multiply
    5,284.12x = 7,288.02 × 3,690.25
  4. Step 4: Simplify right side
    5,284.12x = 26,894,615.81
  5. Step 5: Solve for x
    x = 26,894,615.81/5,284.12
  6. Step 6: Final answer
    x = 5,089.71

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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.