Home / 5,177.10-7,765.65-1,479.55

Finding the Fourth Proportional to 5,177.10, 7,765.65 and 1,479.55

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Solution

The fourth proportional to 5,177.10, 7,765.65 and 1,479.55 is: 2,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.10 : 7,765.65 = 1,479.55 : x
  2. Step 2: Convert to fraction form
    5,177.10/7,765.65 = 1,479.55/x
  3. Step 3: Cross multiply
    5,177.10x = 7,765.65 × 1,479.55
  4. Step 4: Simplify right side
    5,177.10x = 11,489,667.46
  5. Step 5: Solve for x
    x = 11,489,667.46/5,177.10
  6. Step 6: Final answer
    x = 2,219.33

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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.