Home / 3,589.48-5,385.60-1,399.76

Finding the Fourth Proportional to 3,589.48, 5,385.60 and 1,399.76

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Solution

The fourth proportional to 3,589.48, 5,385.60 and 1,399.76 is: 2,100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.48 : 5,385.60 = 1,399.76 : x
  2. Step 2: Convert to fraction form
    3,589.48/5,385.60 = 1,399.76/x
  3. Step 3: Cross multiply
    3,589.48x = 5,385.60 × 1,399.76
  4. Step 4: Simplify right side
    3,589.48x = 7,538,547.46
  5. Step 5: Solve for x
    x = 7,538,547.46/3,589.48
  6. Step 6: Final answer
    x = 2,100.18

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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.