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Finding the Fourth Proportional to 3,392.16, 4,681.05 and 1,900.01

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Solution

The fourth proportional to 3,392.16, 4,681.05 and 1,900.01 is: 2,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.16 : 4,681.05 = 1,900.01 : x
  2. Step 2: Convert to fraction form
    3,392.16/4,681.05 = 1,900.01/x
  3. Step 3: Cross multiply
    3,392.16x = 4,681.05 × 1,900.01
  4. Step 4: Simplify right side
    3,392.16x = 8,894,041.81
  5. Step 5: Solve for x
    x = 8,894,041.81/3,392.16
  6. Step 6: Final answer
    x = 2,621.94

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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.