Home / 2,868.30-4,302.45-1,224.90

Finding the Fourth Proportional to 2,868.30, 4,302.45 and 1,224.90

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Solution

The fourth proportional to 2,868.30, 4,302.45 and 1,224.90 is: 1,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.30 : 4,302.45 = 1,224.90 : x
  2. Step 2: Convert to fraction form
    2,868.30/4,302.45 = 1,224.90/x
  3. Step 3: Cross multiply
    2,868.30x = 4,302.45 × 1,224.90
  4. Step 4: Simplify right side
    2,868.30x = 5,270,071.01
  5. Step 5: Solve for x
    x = 5,270,071.01/2,868.30
  6. Step 6: Final answer
    x = 1,837.35

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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.