Home / 5,121.96-7,681.02-4,039.08

Finding the Fourth Proportional to 5,121.96, 7,681.02 and 4,039.08

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Solution

The fourth proportional to 5,121.96, 7,681.02 and 4,039.08 is: 6,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.96 : 7,681.02 = 4,039.08 : x
  2. Step 2: Convert to fraction form
    5,121.96/7,681.02 = 4,039.08/x
  3. Step 3: Cross multiply
    5,121.96x = 7,681.02 × 4,039.08
  4. Step 4: Simplify right side
    5,121.96x = 31,024,254.26
  5. Step 5: Solve for x
    x = 31,024,254.26/5,121.96
  6. Step 6: Final answer
    x = 6,057.11

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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.