Home / 5,388.21-7,435.65-3,030.75

Finding the Fourth Proportional to 5,388.21, 7,435.65 and 3,030.75

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Solution

The fourth proportional to 5,388.21, 7,435.65 and 3,030.75 is: 4,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.21 : 7,435.65 = 3,030.75 : x
  2. Step 2: Convert to fraction form
    5,388.21/7,435.65 = 3,030.75/x
  3. Step 3: Cross multiply
    5,388.21x = 7,435.65 × 3,030.75
  4. Step 4: Simplify right side
    5,388.21x = 22,535,596.24
  5. Step 5: Solve for x
    x = 22,535,596.24/5,388.21
  6. Step 6: Final answer
    x = 4,182.39

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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.