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Finding the Fourth Proportional to 3,539.77, 4,888.42 and 2,916.47

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Solution

The fourth proportional to 3,539.77, 4,888.42 and 2,916.47 is: 4,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.77 : 4,888.42 = 2,916.47 : x
  2. Step 2: Convert to fraction form
    3,539.77/4,888.42 = 2,916.47/x
  3. Step 3: Cross multiply
    3,539.77x = 4,888.42 × 2,916.47
  4. Step 4: Simplify right side
    3,539.77x = 14,256,935.21
  5. Step 5: Solve for x
    x = 14,256,935.21/3,539.77
  6. Step 6: Final answer
    x = 4,027.65

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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.