Home / 2,223.10-3,045.62-2,140.02

Finding the Fourth Proportional to 2,223.10, 3,045.62 and 2,140.02

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Solution

The fourth proportional to 2,223.10, 3,045.62 and 2,140.02 is: 2,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.10 : 3,045.62 = 2,140.02 : x
  2. Step 2: Convert to fraction form
    2,223.10/3,045.62 = 2,140.02/x
  3. Step 3: Cross multiply
    2,223.10x = 3,045.62 × 2,140.02
  4. Step 4: Simplify right side
    2,223.10x = 6,517,687.71
  5. Step 5: Solve for x
    x = 6,517,687.71/2,223.10
  6. Step 6: Final answer
    x = 2,931.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.