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Finding the Fourth Proportional to 2,671.68, 3,681.84 and 1,924.32

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Solution

The fourth proportional to 2,671.68, 3,681.84 and 1,924.32 is: 2,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.68 : 3,681.84 = 1,924.32 : x
  2. Step 2: Convert to fraction form
    2,671.68/3,681.84 = 1,924.32/x
  3. Step 3: Cross multiply
    2,671.68x = 3,681.84 × 1,924.32
  4. Step 4: Simplify right side
    2,671.68x = 7,085,038.35
  5. Step 5: Solve for x
    x = 7,085,038.35/2,671.68
  6. Step 6: Final answer
    x = 2,651.90

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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.