Home / 7,307.90-10,961.85-2,114.30

Finding the Fourth Proportional to 7,307.90, 10,961.85 and 2,114.30

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Solution

The fourth proportional to 7,307.90, 10,961.85 and 2,114.30 is: 3,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,307.90 : 10,961.85 = 2,114.30 : x
  2. Step 2: Convert to fraction form
    7,307.90/10,961.85 = 2,114.30/x
  3. Step 3: Cross multiply
    7,307.90x = 10,961.85 × 2,114.30
  4. Step 4: Simplify right side
    7,307.90x = 23,176,639.46
  5. Step 5: Solve for x
    x = 23,176,639.46/7,307.90
  6. Step 6: Final answer
    x = 3,171.45

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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.