Home / 3,140.06-4,333.72-1,813.72

Finding the Fourth Proportional to 3,140.06, 4,333.72 and 1,813.72

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Solution

The fourth proportional to 3,140.06, 4,333.72 and 1,813.72 is: 2,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.06 : 4,333.72 = 1,813.72 : x
  2. Step 2: Convert to fraction form
    3,140.06/4,333.72 = 1,813.72/x
  3. Step 3: Cross multiply
    3,140.06x = 4,333.72 × 1,813.72
  4. Step 4: Simplify right side
    3,140.06x = 7,860,154.64
  5. Step 5: Solve for x
    x = 7,860,154.64/3,140.06
  6. Step 6: Final answer
    x = 2,503.19

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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.