Home / 3,543.38-5,315.06-1,688.88

Finding the Fourth Proportional to 3,543.38, 5,315.06 and 1,688.88

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Solution

The fourth proportional to 3,543.38, 5,315.06 and 1,688.88 is: 2,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.38 : 5,315.06 = 1,688.88 : x
  2. Step 2: Convert to fraction form
    3,543.38/5,315.06 = 1,688.88/x
  3. Step 3: Cross multiply
    3,543.38x = 5,315.06 × 1,688.88
  4. Step 4: Simplify right side
    3,543.38x = 8,976,498.53
  5. Step 5: Solve for x
    x = 8,976,498.53/3,543.38
  6. Step 6: Final answer
    x = 2,533.32

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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.