Home / 2,685.81-4,032.40-2,654.63

Finding the Fourth Proportional to 2,685.81, 4,032.40 and 2,654.63

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Solution

The fourth proportional to 2,685.81, 4,032.40 and 2,654.63 is: 3,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.81 : 4,032.40 = 2,654.63 : x
  2. Step 2: Convert to fraction form
    2,685.81/4,032.40 = 2,654.63/x
  3. Step 3: Cross multiply
    2,685.81x = 4,032.40 × 2,654.63
  4. Step 4: Simplify right side
    2,685.81x = 10,704,530.01
  5. Step 5: Solve for x
    x = 10,704,530.01/2,685.81
  6. Step 6: Final answer
    x = 3,985.59

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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.