Home / 7,276.20-10,916.40-3,116.46

Finding the Fourth Proportional to 7,276.20, 10,916.40 and 3,116.46

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Solution

The fourth proportional to 7,276.20, 10,916.40 and 3,116.46 is: 4,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.20 : 10,916.40 = 3,116.46 : x
  2. Step 2: Convert to fraction form
    7,276.20/10,916.40 = 3,116.46/x
  3. Step 3: Cross multiply
    7,276.20x = 10,916.40 × 3,116.46
  4. Step 4: Simplify right side
    7,276.20x = 34,020,523.94
  5. Step 5: Solve for x
    x = 34,020,523.94/7,276.20
  6. Step 6: Final answer
    x = 4,675.59

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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.