Home / 2,287.38-3,430.30-900.35

Finding the Fourth Proportional to 2,287.38, 3,430.30 and 900.35

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Solution

The fourth proportional to 2,287.38, 3,430.30 and 900.35 is: 1,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.38 : 3,430.30 = 900.35 : x
  2. Step 2: Convert to fraction form
    2,287.38/3,430.30 = 900.35/x
  3. Step 3: Cross multiply
    2,287.38x = 3,430.30 × 900.35
  4. Step 4: Simplify right side
    2,287.38x = 3,088,468.35
  5. Step 5: Solve for x
    x = 3,088,468.35/2,287.38
  6. Step 6: Final answer
    x = 1,350.22

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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.