Home / 3,118.10-4,677.58-1,143.47

Finding the Fourth Proportional to 3,118.10, 4,677.58 and 1,143.47

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Solution

The fourth proportional to 3,118.10, 4,677.58 and 1,143.47 is: 1,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.10 : 4,677.58 = 1,143.47 : x
  2. Step 2: Convert to fraction form
    3,118.10/4,677.58 = 1,143.47/x
  3. Step 3: Cross multiply
    3,118.10x = 4,677.58 × 1,143.47
  4. Step 4: Simplify right side
    3,118.10x = 5,348,672.40
  5. Step 5: Solve for x
    x = 5,348,672.40/3,118.10
  6. Step 6: Final answer
    x = 1,715.36

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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.