Home / 7,914.28-10,922.14-4,377.40

Finding the Fourth Proportional to 7,914.28, 10,922.14 and 4,377.40

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Solution

The fourth proportional to 7,914.28, 10,922.14 and 4,377.40 is: 6,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.28 : 10,922.14 = 4,377.40 : x
  2. Step 2: Convert to fraction form
    7,914.28/10,922.14 = 4,377.40/x
  3. Step 3: Cross multiply
    7,914.28x = 10,922.14 × 4,377.40
  4. Step 4: Simplify right side
    7,914.28x = 47,810,575.64
  5. Step 5: Solve for x
    x = 47,810,575.64/7,914.28
  6. Step 6: Final answer
    x = 6,041.05

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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.