Home / 3,485.13-4,807.69-2,289.96

Finding the Fourth Proportional to 3,485.13, 4,807.69 and 2,289.96

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Solution

The fourth proportional to 3,485.13, 4,807.69 and 2,289.96 is: 3,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.13 : 4,807.69 = 2,289.96 : x
  2. Step 2: Convert to fraction form
    3,485.13/4,807.69 = 2,289.96/x
  3. Step 3: Cross multiply
    3,485.13x = 4,807.69 × 2,289.96
  4. Step 4: Simplify right side
    3,485.13x = 11,009,417.79
  5. Step 5: Solve for x
    x = 11,009,417.79/3,485.13
  6. Step 6: Final answer
    x = 3,158.97

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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.