Home / 5,685.90-7,851.33-4,011.02

Finding the Fourth Proportional to 5,685.90, 7,851.33 and 4,011.02

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Solution

The fourth proportional to 5,685.90, 7,851.33 and 4,011.02 is: 5,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.90 : 7,851.33 = 4,011.02 : x
  2. Step 2: Convert to fraction form
    5,685.90/7,851.33 = 4,011.02/x
  3. Step 3: Cross multiply
    5,685.90x = 7,851.33 × 4,011.02
  4. Step 4: Simplify right side
    5,685.90x = 31,491,831.84
  5. Step 5: Solve for x
    x = 31,491,831.84/5,685.90
  6. Step 6: Final answer
    x = 5,538.59

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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.