Home / 3,853.76-5,320.47-2,529.78

Finding the Fourth Proportional to 3,853.76, 5,320.47 and 2,529.78

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Solution

The fourth proportional to 3,853.76, 5,320.47 and 2,529.78 is: 3,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.76 : 5,320.47 = 2,529.78 : x
  2. Step 2: Convert to fraction form
    3,853.76/5,320.47 = 2,529.78/x
  3. Step 3: Cross multiply
    3,853.76x = 5,320.47 × 2,529.78
  4. Step 4: Simplify right side
    3,853.76x = 13,459,618.60
  5. Step 5: Solve for x
    x = 13,459,618.60/3,853.76
  6. Step 6: Final answer
    x = 3,492.60

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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.