Home / 2,880.36-4,320.72-932.76

Finding the Fourth Proportional to 2,880.36, 4,320.72 and 932.76

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Solution

The fourth proportional to 2,880.36, 4,320.72 and 932.76 is: 1,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.36 : 4,320.72 = 932.76 : x
  2. Step 2: Convert to fraction form
    2,880.36/4,320.72 = 932.76/x
  3. Step 3: Cross multiply
    2,880.36x = 4,320.72 × 932.76
  4. Step 4: Simplify right side
    2,880.36x = 4,030,194.79
  5. Step 5: Solve for x
    x = 4,030,194.79/2,880.36
  6. Step 6: Final answer
    x = 1,399.20

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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.