Home / 3,140.02-4,332.21-1,813.43

Finding the Fourth Proportional to 3,140.02, 4,332.21 and 1,813.43

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Solution

The fourth proportional to 3,140.02, 4,332.21 and 1,813.43 is: 2,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.02 : 4,332.21 = 1,813.43 : x
  2. Step 2: Convert to fraction form
    3,140.02/4,332.21 = 1,813.43/x
  3. Step 3: Cross multiply
    3,140.02x = 4,332.21 × 1,813.43
  4. Step 4: Simplify right side
    3,140.02x = 7,856,159.58
  5. Step 5: Solve for x
    x = 7,856,159.58/3,140.02
  6. Step 6: Final answer
    x = 2,501.95

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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.