Home / 4,605.32-6,909.14-1,318.70

Finding the Fourth Proportional to 4,605.32, 6,909.14 and 1,318.70

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Solution

The fourth proportional to 4,605.32, 6,909.14 and 1,318.70 is: 1,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,605.32 : 6,909.14 = 1,318.70 : x
  2. Step 2: Convert to fraction form
    4,605.32/6,909.14 = 1,318.70/x
  3. Step 3: Cross multiply
    4,605.32x = 6,909.14 × 1,318.70
  4. Step 4: Simplify right side
    4,605.32x = 9,111,082.92
  5. Step 5: Solve for x
    x = 9,111,082.92/4,605.32
  6. Step 6: Final answer
    x = 1,978.38

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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.