Home / 4,113.18-5,678.64-2,543.40

Finding the Fourth Proportional to 4,113.18, 5,678.64 and 2,543.40

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Solution

The fourth proportional to 4,113.18, 5,678.64 and 2,543.40 is: 3,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.18 : 5,678.64 = 2,543.40 : x
  2. Step 2: Convert to fraction form
    4,113.18/5,678.64 = 2,543.40/x
  3. Step 3: Cross multiply
    4,113.18x = 5,678.64 × 2,543.40
  4. Step 4: Simplify right side
    4,113.18x = 14,443,052.98
  5. Step 5: Solve for x
    x = 14,443,052.98/4,113.18
  6. Step 6: Final answer
    x = 3,511.41

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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.