Home / 5,281.87-7,289.54-3,953.25

Finding the Fourth Proportional to 5,281.87, 7,289.54 and 3,953.25

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Solution

The fourth proportional to 5,281.87, 7,289.54 and 3,953.25 is: 5,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.87 : 7,289.54 = 3,953.25 : x
  2. Step 2: Convert to fraction form
    5,281.87/7,289.54 = 3,953.25/x
  3. Step 3: Cross multiply
    5,281.87x = 7,289.54 × 3,953.25
  4. Step 4: Simplify right side
    5,281.87x = 28,817,374.01
  5. Step 5: Solve for x
    x = 28,817,374.01/5,281.87
  6. Step 6: Final answer
    x = 5,455.90

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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.