Home / 3,847.16-5,312.89-2,655.23

Finding the Fourth Proportional to 3,847.16, 5,312.89 and 2,655.23

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Solution

The fourth proportional to 3,847.16, 5,312.89 and 2,655.23 is: 3,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.16 : 5,312.89 = 2,655.23 : x
  2. Step 2: Convert to fraction form
    3,847.16/5,312.89 = 2,655.23/x
  3. Step 3: Cross multiply
    3,847.16x = 5,312.89 × 2,655.23
  4. Step 4: Simplify right side
    3,847.16x = 14,106,951.55
  5. Step 5: Solve for x
    x = 14,106,951.55/3,847.16
  6. Step 6: Final answer
    x = 3,666.85

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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.