Home / 1,872.02-2,809.76-948.23

Finding the Fourth Proportional to 1,872.02, 2,809.76 and 948.23

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Solution

The fourth proportional to 1,872.02, 2,809.76 and 948.23 is: 1,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.02 : 2,809.76 = 948.23 : x
  2. Step 2: Convert to fraction form
    1,872.02/2,809.76 = 948.23/x
  3. Step 3: Cross multiply
    1,872.02x = 2,809.76 × 948.23
  4. Step 4: Simplify right side
    1,872.02x = 2,664,279.93
  5. Step 5: Solve for x
    x = 2,664,279.93/1,872.02
  6. Step 6: Final answer
    x = 1,423.21

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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.