Home / 3,140.46-4,328.91-2,513.52

Finding the Fourth Proportional to 3,140.46, 4,328.91 and 2,513.52

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Solution

The fourth proportional to 3,140.46, 4,328.91 and 2,513.52 is: 3,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.46 : 4,328.91 = 2,513.52 : x
  2. Step 2: Convert to fraction form
    3,140.46/4,328.91 = 2,513.52/x
  3. Step 3: Cross multiply
    3,140.46x = 4,328.91 × 2,513.52
  4. Step 4: Simplify right side
    3,140.46x = 10,880,801.86
  5. Step 5: Solve for x
    x = 10,880,801.86/3,140.46
  6. Step 6: Final answer
    x = 3,464.72

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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.