Home / 4,639.28-6,402.28-2,543.28

Finding the Fourth Proportional to 4,639.28, 6,402.28 and 2,543.28

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Solution

The fourth proportional to 4,639.28, 6,402.28 and 2,543.28 is: 3,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.28 : 6,402.28 = 2,543.28 : x
  2. Step 2: Convert to fraction form
    4,639.28/6,402.28 = 2,543.28/x
  3. Step 3: Cross multiply
    4,639.28x = 6,402.28 × 2,543.28
  4. Step 4: Simplify right side
    4,639.28x = 16,282,790.68
  5. Step 5: Solve for x
    x = 16,282,790.68/4,639.28
  6. Step 6: Final answer
    x = 3,509.77

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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.