Home / 3,528.80-5,291.12-1,337.68

Finding the Fourth Proportional to 3,528.80, 5,291.12 and 1,337.68

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Solution

The fourth proportional to 3,528.80, 5,291.12 and 1,337.68 is: 2,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.80 : 5,291.12 = 1,337.68 : x
  2. Step 2: Convert to fraction form
    3,528.80/5,291.12 = 1,337.68/x
  3. Step 3: Cross multiply
    3,528.80x = 5,291.12 × 1,337.68
  4. Step 4: Simplify right side
    3,528.80x = 7,077,835.36
  5. Step 5: Solve for x
    x = 7,077,835.36/3,528.80
  6. Step 6: Final answer
    x = 2,005.74

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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.