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Finding the Fourth Proportional to 3,068.91, 4,603.50 and 877.95

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Solution

The fourth proportional to 3,068.91, 4,603.50 and 877.95 is: 1,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.91 : 4,603.50 = 877.95 : x
  2. Step 2: Convert to fraction form
    3,068.91/4,603.50 = 877.95/x
  3. Step 3: Cross multiply
    3,068.91x = 4,603.50 × 877.95
  4. Step 4: Simplify right side
    3,068.91x = 4,041,642.83
  5. Step 5: Solve for x
    x = 4,041,642.83/3,068.91
  6. Step 6: Final answer
    x = 1,316.96

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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.