Home / 3,122.01-4,681.38-1,478.13

Finding the Fourth Proportional to 3,122.01, 4,681.38 and 1,478.13

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Solution

The fourth proportional to 3,122.01, 4,681.38 and 1,478.13 is: 2,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.01 : 4,681.38 = 1,478.13 : x
  2. Step 2: Convert to fraction form
    3,122.01/4,681.38 = 1,478.13/x
  3. Step 3: Cross multiply
    3,122.01x = 4,681.38 × 1,478.13
  4. Step 4: Simplify right side
    3,122.01x = 6,919,688.22
  5. Step 5: Solve for x
    x = 6,919,688.22/3,122.01
  6. Step 6: Final answer
    x = 2,216.42

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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.