Home / 7,690.38-10,612.72-4,153.59

Finding the Fourth Proportional to 7,690.38, 10,612.72 and 4,153.59

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Solution

The fourth proportional to 7,690.38, 10,612.72 and 4,153.59 is: 5,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.38 : 10,612.72 = 4,153.59 : x
  2. Step 2: Convert to fraction form
    7,690.38/10,612.72 = 4,153.59/x
  3. Step 3: Cross multiply
    7,690.38x = 10,612.72 × 4,153.59
  4. Step 4: Simplify right side
    7,690.38x = 44,080,887.66
  5. Step 5: Solve for x
    x = 44,080,887.66/7,690.38
  6. Step 6: Final answer
    x = 5,731.95

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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.