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Finding the Fourth Proportional to 2,570.76, 3,856.13 and 622.97

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Solution

The fourth proportional to 2,570.76, 3,856.13 and 622.97 is: 934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.76 : 3,856.13 = 622.97 : x
  2. Step 2: Convert to fraction form
    2,570.76/3,856.13 = 622.97/x
  3. Step 3: Cross multiply
    2,570.76x = 3,856.13 × 622.97
  4. Step 4: Simplify right side
    2,570.76x = 2,402,238.61
  5. Step 5: Solve for x
    x = 2,402,238.61/2,570.76
  6. Step 6: Final answer
    x = 934.45

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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.