Home / 5,641.20-8,460.18-1,943.28

Finding the Fourth Proportional to 5,641.20, 8,460.18 and 1,943.28

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Solution

The fourth proportional to 5,641.20, 8,460.18 and 1,943.28 is: 2,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.20 : 8,460.18 = 1,943.28 : x
  2. Step 2: Convert to fraction form
    5,641.20/8,460.18 = 1,943.28/x
  3. Step 3: Cross multiply
    5,641.20x = 8,460.18 × 1,943.28
  4. Step 4: Simplify right side
    5,641.20x = 16,440,498.59
  5. Step 5: Solve for x
    x = 16,440,498.59/5,641.20
  6. Step 6: Final answer
    x = 2,914.36

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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.