Home / 4,752.30-7,128.45-2,803.13

Finding the Fourth Proportional to 4,752.30, 7,128.45 and 2,803.13

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Solution

The fourth proportional to 4,752.30, 7,128.45 and 2,803.13 is: 4,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.30 : 7,128.45 = 2,803.13 : x
  2. Step 2: Convert to fraction form
    4,752.30/7,128.45 = 2,803.13/x
  3. Step 3: Cross multiply
    4,752.30x = 7,128.45 × 2,803.13
  4. Step 4: Simplify right side
    4,752.30x = 19,981,936.41
  5. Step 5: Solve for x
    x = 19,981,936.41/4,752.30
  6. Step 6: Final answer
    x = 4,204.69

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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.