Home / 6,315.42-9,472.32-1,931.70

Finding the Fourth Proportional to 6,315.42, 9,472.32 and 1,931.70

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Solution

The fourth proportional to 6,315.42, 9,472.32 and 1,931.70 is: 2,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.42 : 9,472.32 = 1,931.70 : x
  2. Step 2: Convert to fraction form
    6,315.42/9,472.32 = 1,931.70/x
  3. Step 3: Cross multiply
    6,315.42x = 9,472.32 × 1,931.70
  4. Step 4: Simplify right side
    6,315.42x = 18,297,680.54
  5. Step 5: Solve for x
    x = 18,297,680.54/6,315.42
  6. Step 6: Final answer
    x = 2,897.30

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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.