Home / 7,402.30-10,215.32-4,045.32

Finding the Fourth Proportional to 7,402.30, 10,215.32 and 4,045.32

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Solution

The fourth proportional to 7,402.30, 10,215.32 and 4,045.32 is: 5,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.30 : 10,215.32 = 4,045.32 : x
  2. Step 2: Convert to fraction form
    7,402.30/10,215.32 = 4,045.32/x
  3. Step 3: Cross multiply
    7,402.30x = 10,215.32 × 4,045.32
  4. Step 4: Simplify right side
    7,402.30x = 41,324,192.54
  5. Step 5: Solve for x
    x = 41,324,192.54/7,402.30
  6. Step 6: Final answer
    x = 5,582.62

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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.