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Finding the Fourth Proportional to 3,068.47, 4,602.85 and 877.52

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Solution

The fourth proportional to 3,068.47, 4,602.85 and 877.52 is: 1,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.47 : 4,602.85 = 877.52 : x
  2. Step 2: Convert to fraction form
    3,068.47/4,602.85 = 877.52/x
  3. Step 3: Cross multiply
    3,068.47x = 4,602.85 × 877.52
  4. Step 4: Simplify right side
    3,068.47x = 4,039,069.92
  5. Step 5: Solve for x
    x = 4,039,069.92/3,068.47
  6. Step 6: Final answer
    x = 1,316.32

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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.