Home / 2,425.47-3,640.37-1,127.67

Finding the Fourth Proportional to 2,425.47, 3,640.37 and 1,127.67

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Solution

The fourth proportional to 2,425.47, 3,640.37 and 1,127.67 is: 1,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.47 : 3,640.37 = 1,127.67 : x
  2. Step 2: Convert to fraction form
    2,425.47/3,640.37 = 1,127.67/x
  3. Step 3: Cross multiply
    2,425.47x = 3,640.37 × 1,127.67
  4. Step 4: Simplify right side
    2,425.47x = 4,105,130.40
  5. Step 5: Solve for x
    x = 4,105,130.40/2,425.47
  6. Step 6: Final answer
    x = 1,692.51

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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.