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Finding the Fourth Proportional to 2,594.84, 3,892.42 and 647.06

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Solution

The fourth proportional to 2,594.84, 3,892.42 and 647.06 is: 970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,594.84 : 3,892.42 = 647.06 : x
  2. Step 2: Convert to fraction form
    2,594.84/3,892.42 = 647.06/x
  3. Step 3: Cross multiply
    2,594.84x = 3,892.42 × 647.06
  4. Step 4: Simplify right side
    2,594.84x = 2,518,629.29
  5. Step 5: Solve for x
    x = 2,518,629.29/2,594.84
  6. Step 6: Final answer
    x = 970.63

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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.