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Finding the Fourth Proportional to 3,358.86, 5,038.28 and 893.68

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Solution

The fourth proportional to 3,358.86, 5,038.28 and 893.68 is: 1,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.86 : 5,038.28 = 893.68 : x
  2. Step 2: Convert to fraction form
    3,358.86/5,038.28 = 893.68/x
  3. Step 3: Cross multiply
    3,358.86x = 5,038.28 × 893.68
  4. Step 4: Simplify right side
    3,358.86x = 4,502,610.07
  5. Step 5: Solve for x
    x = 4,502,610.07/3,358.86
  6. Step 6: Final answer
    x = 1,340.52

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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.