Home / 2,861.54-4,292.47-913.60

Finding the Fourth Proportional to 2,861.54, 4,292.47 and 913.60

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Solution

The fourth proportional to 2,861.54, 4,292.47 and 913.60 is: 1,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.54 : 4,292.47 = 913.60 : x
  2. Step 2: Convert to fraction form
    2,861.54/4,292.47 = 913.60/x
  3. Step 3: Cross multiply
    2,861.54x = 4,292.47 × 913.60
  4. Step 4: Simplify right side
    2,861.54x = 3,921,587.58
  5. Step 5: Solve for x
    x = 3,921,587.58/2,861.54
  6. Step 6: Final answer
    x = 1,370.45

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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.