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Finding the Fourth Proportional to 2,866.89, 4,300.57 and 1,223.46

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Solution

The fourth proportional to 2,866.89, 4,300.57 and 1,223.46 is: 1,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.89 : 4,300.57 = 1,223.46 : x
  2. Step 2: Convert to fraction form
    2,866.89/4,300.57 = 1,223.46/x
  3. Step 3: Cross multiply
    2,866.89x = 4,300.57 × 1,223.46
  4. Step 4: Simplify right side
    2,866.89x = 5,261,547.75
  5. Step 5: Solve for x
    x = 5,261,547.75/2,866.89
  6. Step 6: Final answer
    x = 1,835.28

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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.