Home / 5,498.60-7,590.18-4,172.20

Finding the Fourth Proportional to 5,498.60, 7,590.18 and 4,172.20

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Solution

The fourth proportional to 5,498.60, 7,590.18 and 4,172.20 is: 5,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,498.60 : 7,590.18 = 4,172.20 : x
  2. Step 2: Convert to fraction form
    5,498.60/7,590.18 = 4,172.20/x
  3. Step 3: Cross multiply
    5,498.60x = 7,590.18 × 4,172.20
  4. Step 4: Simplify right side
    5,498.60x = 31,667,749.00
  5. Step 5: Solve for x
    x = 31,667,749.00/5,498.60
  6. Step 6: Final answer
    x = 5,759.24

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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.