Home / 7,402.43-10,214.93-4,045.20

Finding the Fourth Proportional to 7,402.43, 10,214.93 and 4,045.20

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Solution

The fourth proportional to 7,402.43, 10,214.93 and 4,045.20 is: 5,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.43 : 10,214.93 = 4,045.20 : x
  2. Step 2: Convert to fraction form
    7,402.43/10,214.93 = 4,045.20/x
  3. Step 3: Cross multiply
    7,402.43x = 10,214.93 × 4,045.20
  4. Step 4: Simplify right side
    7,402.43x = 41,321,414.61
  5. Step 5: Solve for x
    x = 41,321,414.61/7,402.43
  6. Step 6: Final answer
    x = 5,582.15

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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.