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Finding the Fourth Proportional to 5,798.54, 7,999.79 and 4,289.70

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Solution

The fourth proportional to 5,798.54, 7,999.79 and 4,289.70 is: 5,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.54 : 7,999.79 = 4,289.70 : x
  2. Step 2: Convert to fraction form
    5,798.54/7,999.79 = 4,289.70/x
  3. Step 3: Cross multiply
    5,798.54x = 7,999.79 × 4,289.70
  4. Step 4: Simplify right side
    5,798.54x = 34,316,677.71
  5. Step 5: Solve for x
    x = 34,316,677.71/5,798.54
  6. Step 6: Final answer
    x = 5,918.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.