Home / 5,299.20-7,312.80-2,941.60

Finding the Fourth Proportional to 5,299.20, 7,312.80 and 2,941.60

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Solution

The fourth proportional to 5,299.20, 7,312.80 and 2,941.60 is: 4,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.20 : 7,312.80 = 2,941.60 : x
  2. Step 2: Convert to fraction form
    5,299.20/7,312.80 = 2,941.60/x
  3. Step 3: Cross multiply
    5,299.20x = 7,312.80 × 2,941.60
  4. Step 4: Simplify right side
    5,299.20x = 21,511,332.48
  5. Step 5: Solve for x
    x = 21,511,332.48/5,299.20
  6. Step 6: Final answer
    x = 4,059.35

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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.