Home / 4,915.60-7,360.60-4,685.20

Finding the Fourth Proportional to 4,915.60, 7,360.60 and 4,685.20

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Solution

The fourth proportional to 4,915.60, 7,360.60 and 4,685.20 is: 7,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.60 : 7,360.60 = 4,685.20 : x
  2. Step 2: Convert to fraction form
    4,915.60/7,360.60 = 4,685.20/x
  3. Step 3: Cross multiply
    4,915.60x = 7,360.60 × 4,685.20
  4. Step 4: Simplify right side
    4,915.60x = 34,485,883.12
  5. Step 5: Solve for x
    x = 34,485,883.12/4,915.60
  6. Step 6: Final answer
    x = 7,015.60

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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.