Home / 5,615.49-8,425.40-2,151.93

Finding the Fourth Proportional to 5,615.49, 8,425.40 and 2,151.93

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Solution

The fourth proportional to 5,615.49, 8,425.40 and 2,151.93 is: 3,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.49 : 8,425.40 = 2,151.93 : x
  2. Step 2: Convert to fraction form
    5,615.49/8,425.40 = 2,151.93/x
  3. Step 3: Cross multiply
    5,615.49x = 8,425.40 × 2,151.93
  4. Step 4: Simplify right side
    5,615.49x = 18,130,871.02
  5. Step 5: Solve for x
    x = 18,130,871.02/5,615.49
  6. Step 6: Final answer
    x = 3,228.72

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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.