Home / 4,200.96-5,800.32-2,807.04

Finding the Fourth Proportional to 4,200.96, 5,800.32 and 2,807.04

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Solution

The fourth proportional to 4,200.96, 5,800.32 and 2,807.04 is: 3,875.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.96 : 5,800.32 = 2,807.04 : x
  2. Step 2: Convert to fraction form
    4,200.96/5,800.32 = 2,807.04/x
  3. Step 3: Cross multiply
    4,200.96x = 5,800.32 × 2,807.04
  4. Step 4: Simplify right side
    4,200.96x = 16,281,730.25
  5. Step 5: Solve for x
    x = 16,281,730.25/4,200.96
  6. Step 6: Final answer
    x = 3,875.72

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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.