Home / 3,143.02-4,332.39-2,511.55

Finding the Fourth Proportional to 3,143.02, 4,332.39 and 2,511.55

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Solution

The fourth proportional to 3,143.02, 4,332.39 and 2,511.55 is: 3,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.02 : 4,332.39 = 2,511.55 : x
  2. Step 2: Convert to fraction form
    3,143.02/4,332.39 = 2,511.55/x
  3. Step 3: Cross multiply
    3,143.02x = 4,332.39 × 2,511.55
  4. Step 4: Simplify right side
    3,143.02x = 10,881,014.10
  5. Step 5: Solve for x
    x = 10,881,014.10/3,143.02
  6. Step 6: Final answer
    x = 3,461.96

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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.