Home / 5,648.60-7,795.09-3,130.75

Finding the Fourth Proportional to 5,648.60, 7,795.09 and 3,130.75

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Solution

The fourth proportional to 5,648.60, 7,795.09 and 3,130.75 is: 4,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.60 : 7,795.09 = 3,130.75 : x
  2. Step 2: Convert to fraction form
    5,648.60/7,795.09 = 3,130.75/x
  3. Step 3: Cross multiply
    5,648.60x = 7,795.09 × 3,130.75
  4. Step 4: Simplify right side
    5,648.60x = 24,404,474.06
  5. Step 5: Solve for x
    x = 24,404,474.06/5,648.60
  6. Step 6: Final answer
    x = 4,320.45

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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.