Home / 4,901.60-7,352.40-1,391.60

Finding the Fourth Proportional to 4,901.60, 7,352.40 and 1,391.60

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Solution

The fourth proportional to 4,901.60, 7,352.40 and 1,391.60 is: 2,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.60 : 7,352.40 = 1,391.60 : x
  2. Step 2: Convert to fraction form
    4,901.60/7,352.40 = 1,391.60/x
  3. Step 3: Cross multiply
    4,901.60x = 7,352.40 × 1,391.60
  4. Step 4: Simplify right side
    4,901.60x = 10,231,599.84
  5. Step 5: Solve for x
    x = 10,231,599.84/4,901.60
  6. Step 6: Final answer
    x = 2,087.40

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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.