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Finding the Fourth Proportional to 2,854.04, 4,281.02 and 906.40

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Solution

The fourth proportional to 2,854.04, 4,281.02 and 906.40 is: 1,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.04 : 4,281.02 = 906.40 : x
  2. Step 2: Convert to fraction form
    2,854.04/4,281.02 = 906.40/x
  3. Step 3: Cross multiply
    2,854.04x = 4,281.02 × 906.40
  4. Step 4: Simplify right side
    2,854.04x = 3,880,316.53
  5. Step 5: Solve for x
    x = 3,880,316.53/2,854.04
  6. Step 6: Final answer
    x = 1,359.59

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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.