Home / 2,902.85-4,005.88-1,576.54

Finding the Fourth Proportional to 2,902.85, 4,005.88 and 1,576.54

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Solution

The fourth proportional to 2,902.85, 4,005.88 and 1,576.54 is: 2,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.85 : 4,005.88 = 1,576.54 : x
  2. Step 2: Convert to fraction form
    2,902.85/4,005.88 = 1,576.54/x
  3. Step 3: Cross multiply
    2,902.85x = 4,005.88 × 1,576.54
  4. Step 4: Simplify right side
    2,902.85x = 6,315,430.06
  5. Step 5: Solve for x
    x = 6,315,430.06/2,902.85
  6. Step 6: Final answer
    x = 2,175.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.