Home / 5,681.28-8,516.43-1,784.76

Finding the Fourth Proportional to 5,681.28, 8,516.43 and 1,784.76

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Solution

The fourth proportional to 5,681.28, 8,516.43 and 1,784.76 is: 2,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.28 : 8,516.43 = 1,784.76 : x
  2. Step 2: Convert to fraction form
    5,681.28/8,516.43 = 1,784.76/x
  3. Step 3: Cross multiply
    5,681.28x = 8,516.43 × 1,784.76
  4. Step 4: Simplify right side
    5,681.28x = 15,199,783.61
  5. Step 5: Solve for x
    x = 15,199,783.61/5,681.28
  6. Step 6: Final answer
    x = 2,675.42

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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.