Home / 4,200.84-6,298.86-1,278.28

Finding the Fourth Proportional to 4,200.84, 6,298.86 and 1,278.28

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Solution

The fourth proportional to 4,200.84, 6,298.86 and 1,278.28 is: 1,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.84 : 6,298.86 = 1,278.28 : x
  2. Step 2: Convert to fraction form
    4,200.84/6,298.86 = 1,278.28/x
  3. Step 3: Cross multiply
    4,200.84x = 6,298.86 × 1,278.28
  4. Step 4: Simplify right side
    4,200.84x = 8,051,706.76
  5. Step 5: Solve for x
    x = 8,051,706.76/4,200.84
  6. Step 6: Final answer
    x = 1,916.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.