Home / 2,458.64-3,688.77-899.12

Finding the Fourth Proportional to 2,458.64, 3,688.77 and 899.12

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Solution

The fourth proportional to 2,458.64, 3,688.77 and 899.12 is: 1,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.64 : 3,688.77 = 899.12 : x
  2. Step 2: Convert to fraction form
    2,458.64/3,688.77 = 899.12/x
  3. Step 3: Cross multiply
    2,458.64x = 3,688.77 × 899.12
  4. Step 4: Simplify right side
    2,458.64x = 3,316,646.88
  5. Step 5: Solve for x
    x = 3,316,646.88/2,458.64
  6. Step 6: Final answer
    x = 1,348.98

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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.