Home / 3,856.50-5,320.85-2,598.98

Finding the Fourth Proportional to 3,856.50, 5,320.85 and 2,598.98

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Solution

The fourth proportional to 3,856.50, 5,320.85 and 2,598.98 is: 3,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.50 : 5,320.85 = 2,598.98 : x
  2. Step 2: Convert to fraction form
    3,856.50/5,320.85 = 2,598.98/x
  3. Step 3: Cross multiply
    3,856.50x = 5,320.85 × 2,598.98
  4. Step 4: Simplify right side
    3,856.50x = 13,828,743.13
  5. Step 5: Solve for x
    x = 13,828,743.13/3,856.50
  6. Step 6: Final answer
    x = 3,585.83

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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.