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Finding the Fourth Proportional to 3,392.54, 5,088.74 and 893.69

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Solution

The fourth proportional to 3,392.54, 5,088.74 and 893.69 is: 1,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.54 : 5,088.74 = 893.69 : x
  2. Step 2: Convert to fraction form
    3,392.54/5,088.74 = 893.69/x
  3. Step 3: Cross multiply
    3,392.54x = 5,088.74 × 893.69
  4. Step 4: Simplify right side
    3,392.54x = 4,547,730.61
  5. Step 5: Solve for x
    x = 4,547,730.61/3,392.54
  6. Step 6: Final answer
    x = 1,340.51

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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.