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Finding the Fourth Proportional to 5,746.78, 8,602.89 and 5,386.78

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Solution

The fourth proportional to 5,746.78, 8,602.89 and 5,386.78 is: 8,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,746.78 : 8,602.89 = 5,386.78 : x
  2. Step 2: Convert to fraction form
    5,746.78/8,602.89 = 5,386.78/x
  3. Step 3: Cross multiply
    5,746.78x = 8,602.89 × 5,386.78
  4. Step 4: Simplify right side
    5,746.78x = 46,341,875.79
  5. Step 5: Solve for x
    x = 46,341,875.79/5,746.78
  6. Step 6: Final answer
    x = 8,063.97

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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.