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Finding the Fourth Proportional to 2,894.96, 4,341.99 and 947.15

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Solution

The fourth proportional to 2,894.96, 4,341.99 and 947.15 is: 1,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.96 : 4,341.99 = 947.15 : x
  2. Step 2: Convert to fraction form
    2,894.96/4,341.99 = 947.15/x
  3. Step 3: Cross multiply
    2,894.96x = 4,341.99 × 947.15
  4. Step 4: Simplify right side
    2,894.96x = 4,112,515.83
  5. Step 5: Solve for x
    x = 4,112,515.83/2,894.96
  6. Step 6: Final answer
    x = 1,420.58

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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.