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Finding the Fourth Proportional to 2,953.63, 4,075.88 and 1,693.81

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Solution

The fourth proportional to 2,953.63, 4,075.88 and 1,693.81 is: 2,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.63 : 4,075.88 = 1,693.81 : x
  2. Step 2: Convert to fraction form
    2,953.63/4,075.88 = 1,693.81/x
  3. Step 3: Cross multiply
    2,953.63x = 4,075.88 × 1,693.81
  4. Step 4: Simplify right side
    2,953.63x = 6,903,737.45
  5. Step 5: Solve for x
    x = 6,903,737.45/2,953.63
  6. Step 6: Final answer
    x = 2,337.38

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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.