Home / 4,905.20-7,357.80-4,655.60

Finding the Fourth Proportional to 4,905.20, 7,357.80 and 4,655.60

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Solution

The fourth proportional to 4,905.20, 7,357.80 and 4,655.60 is: 6,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.20 : 7,357.80 = 4,655.60 : x
  2. Step 2: Convert to fraction form
    4,905.20/7,357.80 = 4,655.60/x
  3. Step 3: Cross multiply
    4,905.20x = 7,357.80 × 4,655.60
  4. Step 4: Simplify right side
    4,905.20x = 34,254,973.68
  5. Step 5: Solve for x
    x = 34,254,973.68/4,905.20
  6. Step 6: Final answer
    x = 6,983.40

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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.