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Finding the Fourth Proportional to 2,774.12, 4,159.76 and 924.74

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Solution

The fourth proportional to 2,774.12, 4,159.76 and 924.74 is: 1,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.12 : 4,159.76 = 924.74 : x
  2. Step 2: Convert to fraction form
    2,774.12/4,159.76 = 924.74/x
  3. Step 3: Cross multiply
    2,774.12x = 4,159.76 × 924.74
  4. Step 4: Simplify right side
    2,774.12x = 3,846,671.04
  5. Step 5: Solve for x
    x = 3,846,671.04/2,774.12
  6. Step 6: Final answer
    x = 1,386.63

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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.