Home / 2,985.42-4,475.79-1,887.48

Finding the Fourth Proportional to 2,985.42, 4,475.79 and 1,887.48

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Solution

The fourth proportional to 2,985.42, 4,475.79 and 1,887.48 is: 2,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.42 : 4,475.79 = 1,887.48 : x
  2. Step 2: Convert to fraction form
    2,985.42/4,475.79 = 1,887.48/x
  3. Step 3: Cross multiply
    2,985.42x = 4,475.79 × 1,887.48
  4. Step 4: Simplify right side
    2,985.42x = 8,447,964.11
  5. Step 5: Solve for x
    x = 8,447,964.11/2,985.42
  6. Step 6: Final answer
    x = 2,829.74

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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.