Home / 4,890.48-6,750.40-3,126.84

Finding the Fourth Proportional to 4,890.48, 6,750.40 and 3,126.84

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Solution

The fourth proportional to 4,890.48, 6,750.40 and 3,126.84 is: 4,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.48 : 6,750.40 = 3,126.84 : x
  2. Step 2: Convert to fraction form
    4,890.48/6,750.40 = 3,126.84/x
  3. Step 3: Cross multiply
    4,890.48x = 6,750.40 × 3,126.84
  4. Step 4: Simplify right side
    4,890.48x = 21,107,420.74
  5. Step 5: Solve for x
    x = 21,107,420.74/4,890.48
  6. Step 6: Final answer
    x = 4,316.02

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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.