Home / 5,621.86-8,432.80-1,725.76

Finding the Fourth Proportional to 5,621.86, 8,432.80 and 1,725.76

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Solution

The fourth proportional to 5,621.86, 8,432.80 and 1,725.76 is: 2,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.86 : 8,432.80 = 1,725.76 : x
  2. Step 2: Convert to fraction form
    5,621.86/8,432.80 = 1,725.76/x
  3. Step 3: Cross multiply
    5,621.86x = 8,432.80 × 1,725.76
  4. Step 4: Simplify right side
    5,621.86x = 14,552,988.93
  5. Step 5: Solve for x
    x = 14,552,988.93/5,621.86
  6. Step 6: Final answer
    x = 2,588.64

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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.