Home / 10,880.40-16,317.63-2,981.01

Finding the Fourth Proportional to 10,880.40, 16,317.63 and 2,981.01

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Solution

The fourth proportional to 10,880.40, 16,317.63 and 2,981.01 is: 4,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.40 : 16,317.63 = 2,981.01 : x
  2. Step 2: Convert to fraction form
    10,880.40/16,317.63 = 2,981.01/x
  3. Step 3: Cross multiply
    10,880.40x = 16,317.63 × 2,981.01
  4. Step 4: Simplify right side
    10,880.40x = 48,643,018.21
  5. Step 5: Solve for x
    x = 48,643,018.21/10,880.40
  6. Step 6: Final answer
    x = 4,470.70

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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.