Home / 5,557.37-7,667.95-3,318.90

Finding the Fourth Proportional to 5,557.37, 7,667.95 and 3,318.90

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Solution

The fourth proportional to 5,557.37, 7,667.95 and 3,318.90 is: 4,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.37 : 7,667.95 = 3,318.90 : x
  2. Step 2: Convert to fraction form
    5,557.37/7,667.95 = 3,318.90/x
  3. Step 3: Cross multiply
    5,557.37x = 7,667.95 × 3,318.90
  4. Step 4: Simplify right side
    5,557.37x = 25,449,159.26
  5. Step 5: Solve for x
    x = 25,449,159.26/5,557.37
  6. Step 6: Final answer
    x = 4,579.35

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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.