Home / 4,820.70-6,655.19-3,143.13

Finding the Fourth Proportional to 4,820.70, 6,655.19 and 3,143.13

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Solution

The fourth proportional to 4,820.70, 6,655.19 and 3,143.13 is: 4,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.70 : 6,655.19 = 3,143.13 : x
  2. Step 2: Convert to fraction form
    4,820.70/6,655.19 = 3,143.13/x
  3. Step 3: Cross multiply
    4,820.70x = 6,655.19 × 3,143.13
  4. Step 4: Simplify right side
    4,820.70x = 20,918,127.34
  5. Step 5: Solve for x
    x = 20,918,127.34/4,820.70
  6. Step 6: Final answer
    x = 4,339.23

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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.