Home / 4,188.84-6,280.86-1,266.28

Finding the Fourth Proportional to 4,188.84, 6,280.86 and 1,266.28

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Solution

The fourth proportional to 4,188.84, 6,280.86 and 1,266.28 is: 1,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.84 : 6,280.86 = 1,266.28 : x
  2. Step 2: Convert to fraction form
    4,188.84/6,280.86 = 1,266.28/x
  3. Step 3: Cross multiply
    4,188.84x = 6,280.86 × 1,266.28
  4. Step 4: Simplify right side
    4,188.84x = 7,953,327.40
  5. Step 5: Solve for x
    x = 7,953,327.40/4,188.84
  6. Step 6: Final answer
    x = 1,898.69

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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.