Home / 5,190.04-7,781.46-2,558.08

Finding the Fourth Proportional to 5,190.04, 7,781.46 and 2,558.08

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Solution

The fourth proportional to 5,190.04, 7,781.46 and 2,558.08 is: 3,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.04 : 7,781.46 = 2,558.08 : x
  2. Step 2: Convert to fraction form
    5,190.04/7,781.46 = 2,558.08/x
  3. Step 3: Cross multiply
    5,190.04x = 7,781.46 × 2,558.08
  4. Step 4: Simplify right side
    5,190.04x = 19,905,597.20
  5. Step 5: Solve for x
    x = 19,905,597.20/5,190.04
  6. Step 6: Final answer
    x = 3,835.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.