Home / 7,284.90-10,927.35-3,122.20

Finding the Fourth Proportional to 7,284.90, 10,927.35 and 3,122.20

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Solution

The fourth proportional to 7,284.90, 10,927.35 and 3,122.20 is: 4,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.90 : 10,927.35 = 3,122.20 : x
  2. Step 2: Convert to fraction form
    7,284.90/10,927.35 = 3,122.20/x
  3. Step 3: Cross multiply
    7,284.90x = 10,927.35 × 3,122.20
  4. Step 4: Simplify right side
    7,284.90x = 34,117,372.17
  5. Step 5: Solve for x
    x = 34,117,372.17/7,284.90
  6. Step 6: Final answer
    x = 4,683.30

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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.