Home / 4,126.95-5,695.79-3,130.56

Finding the Fourth Proportional to 4,126.95, 5,695.79 and 3,130.56

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Solution

The fourth proportional to 4,126.95, 5,695.79 and 3,130.56 is: 4,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.95 : 5,695.79 = 3,130.56 : x
  2. Step 2: Convert to fraction form
    4,126.95/5,695.79 = 3,130.56/x
  3. Step 3: Cross multiply
    4,126.95x = 5,695.79 × 3,130.56
  4. Step 4: Simplify right side
    4,126.95x = 17,830,996.69
  5. Step 5: Solve for x
    x = 17,830,996.69/4,126.95
  6. Step 6: Final answer
    x = 4,320.62

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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.