Home / 5,637.22-8,454.20-1,688.32

Finding the Fourth Proportional to 5,637.22, 8,454.20 and 1,688.32

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Solution

The fourth proportional to 5,637.22, 8,454.20 and 1,688.32 is: 2,531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.22 : 8,454.20 = 1,688.32 : x
  2. Step 2: Convert to fraction form
    5,637.22/8,454.20 = 1,688.32/x
  3. Step 3: Cross multiply
    5,637.22x = 8,454.20 × 1,688.32
  4. Step 4: Simplify right side
    5,637.22x = 14,273,378.04
  5. Step 5: Solve for x
    x = 14,273,378.04/5,637.22
  6. Step 6: Final answer
    x = 2,531.99

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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.