Home / 7,914.05-10,920.65-4,377.18

Finding the Fourth Proportional to 7,914.05, 10,920.65 and 4,377.18

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Solution

The fourth proportional to 7,914.05, 10,920.65 and 4,377.18 is: 6,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.05 : 10,920.65 = 4,377.18 : x
  2. Step 2: Convert to fraction form
    7,914.05/10,920.65 = 4,377.18/x
  3. Step 3: Cross multiply
    7,914.05x = 10,920.65 × 4,377.18
  4. Step 4: Simplify right side
    7,914.05x = 47,801,650.77
  5. Step 5: Solve for x
    x = 47,801,650.77/7,914.05
  6. Step 6: Final answer
    x = 6,040.10

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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.