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Finding the Fourth Proportional to 4,666.79, 6,999.89 and 2,587.79

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Solution

The fourth proportional to 4,666.79, 6,999.89 and 2,587.79 is: 3,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,666.79 : 6,999.89 = 2,587.79 : x
  2. Step 2: Convert to fraction form
    4,666.79/6,999.89 = 2,587.79/x
  3. Step 3: Cross multiply
    4,666.79x = 6,999.89 × 2,587.79
  4. Step 4: Simplify right side
    4,666.79x = 18,114,232.40
  5. Step 5: Solve for x
    x = 18,114,232.40/4,666.79
  6. Step 6: Final answer
    x = 3,881.52

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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.