Home / 3,140.16-4,328.80-2,392.83

Finding the Fourth Proportional to 3,140.16, 4,328.80 and 2,392.83

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Solution

The fourth proportional to 3,140.16, 4,328.80 and 2,392.83 is: 3,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.16 : 4,328.80 = 2,392.83 : x
  2. Step 2: Convert to fraction form
    3,140.16/4,328.80 = 2,392.83/x
  3. Step 3: Cross multiply
    3,140.16x = 4,328.80 × 2,392.83
  4. Step 4: Simplify right side
    3,140.16x = 10,358,048.90
  5. Step 5: Solve for x
    x = 10,358,048.90/3,140.16
  6. Step 6: Final answer
    x = 3,298.57

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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.