Home / 7,345.78-10,137.15-4,201.96

Finding the Fourth Proportional to 7,345.78, 10,137.15 and 4,201.96

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Solution

The fourth proportional to 7,345.78, 10,137.15 and 4,201.96 is: 5,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.78 : 10,137.15 = 4,201.96 : x
  2. Step 2: Convert to fraction form
    7,345.78/10,137.15 = 4,201.96/x
  3. Step 3: Cross multiply
    7,345.78x = 10,137.15 × 4,201.96
  4. Step 4: Simplify right side
    7,345.78x = 42,595,898.81
  5. Step 5: Solve for x
    x = 42,595,898.81/7,345.78
  6. Step 6: Final answer
    x = 5,798.69

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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.