Home / 7,690.32-10,612.64-4,153.53

Finding the Fourth Proportional to 7,690.32, 10,612.64 and 4,153.53

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Solution

The fourth proportional to 7,690.32, 10,612.64 and 4,153.53 is: 5,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.32 : 10,612.64 = 4,153.53 : x
  2. Step 2: Convert to fraction form
    7,690.32/10,612.64 = 4,153.53/x
  3. Step 3: Cross multiply
    7,690.32x = 10,612.64 × 4,153.53
  4. Step 4: Simplify right side
    7,690.32x = 44,079,897.85
  5. Step 5: Solve for x
    x = 44,079,897.85/7,690.32
  6. Step 6: Final answer
    x = 5,731.87

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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.