Home / 2,880.24-4,318.92-931.92

Finding the Fourth Proportional to 2,880.24, 4,318.92 and 931.92

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Solution

The fourth proportional to 2,880.24, 4,318.92 and 931.92 is: 1,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.24 : 4,318.92 = 931.92 : x
  2. Step 2: Convert to fraction form
    2,880.24/4,318.92 = 931.92/x
  3. Step 3: Cross multiply
    2,880.24x = 4,318.92 × 931.92
  4. Step 4: Simplify right side
    2,880.24x = 4,024,887.93
  5. Step 5: Solve for x
    x = 4,024,887.93/2,880.24
  6. Step 6: Final answer
    x = 1,397.41

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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.