Home / 7,781.40-10,737.99-4,244.63

Finding the Fourth Proportional to 7,781.40, 10,737.99 and 4,244.63

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Solution

The fourth proportional to 7,781.40, 10,737.99 and 4,244.63 is: 5,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.40 : 10,737.99 = 4,244.63 : x
  2. Step 2: Convert to fraction form
    7,781.40/10,737.99 = 4,244.63/x
  3. Step 3: Cross multiply
    7,781.40x = 10,737.99 × 4,244.63
  4. Step 4: Simplify right side
    7,781.40x = 45,578,740.80
  5. Step 5: Solve for x
    x = 45,578,740.80/7,781.40
  6. Step 6: Final answer
    x = 5,857.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.