Home / 5,114.81-7,059.20-3,126.51

Finding the Fourth Proportional to 5,114.81, 7,059.20 and 3,126.51

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Solution

The fourth proportional to 5,114.81, 7,059.20 and 3,126.51 is: 4,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.81 : 7,059.20 = 3,126.51 : x
  2. Step 2: Convert to fraction form
    5,114.81/7,059.20 = 3,126.51/x
  3. Step 3: Cross multiply
    5,114.81x = 7,059.20 × 3,126.51
  4. Step 4: Simplify right side
    5,114.81x = 22,070,643.76
  5. Step 5: Solve for x
    x = 22,070,643.76/5,114.81
  6. Step 6: Final answer
    x = 4,315.04

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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.