Home / 4,719.48-7,078.28-4,485.30

Finding the Fourth Proportional to 4,719.48, 7,078.28 and 4,485.30

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Solution

The fourth proportional to 4,719.48, 7,078.28 and 4,485.30 is: 6,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.48 : 7,078.28 = 4,485.30 : x
  2. Step 2: Convert to fraction form
    4,719.48/7,078.28 = 4,485.30/x
  3. Step 3: Cross multiply
    4,719.48x = 7,078.28 × 4,485.30
  4. Step 4: Simplify right side
    4,719.48x = 31,748,186.86
  5. Step 5: Solve for x
    x = 31,748,186.86/4,719.48
  6. Step 6: Final answer
    x = 6,727.05

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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.