Home / 7,207.36-10,815.36-2,590.72

Finding the Fourth Proportional to 7,207.36, 10,815.36 and 2,590.72

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Solution

The fourth proportional to 7,207.36, 10,815.36 and 2,590.72 is: 3,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.36 : 10,815.36 = 2,590.72 : x
  2. Step 2: Convert to fraction form
    7,207.36/10,815.36 = 2,590.72/x
  3. Step 3: Cross multiply
    7,207.36x = 10,815.36 × 2,590.72
  4. Step 4: Simplify right side
    7,207.36x = 28,019,569.46
  5. Step 5: Solve for x
    x = 28,019,569.46/7,207.36
  6. Step 6: Final answer
    x = 3,887.63

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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.